CN109683455B - Developing cartridge, reset method, and image forming apparatus - Google Patents
Developing cartridge, reset method, and image forming apparatus Download PDFInfo
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- CN109683455B CN109683455B CN201910045723.6A CN201910045723A CN109683455B CN 109683455 B CN109683455 B CN 109683455B CN 201910045723 A CN201910045723 A CN 201910045723A CN 109683455 B CN109683455 B CN 109683455B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 110
- 230000005540 biological transmission Effects 0.000 claims abstract description 71
- 238000012546 transfer Methods 0.000 claims abstract description 58
- 238000003756 stirring Methods 0.000 claims description 29
- 238000013459 approach Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000003384 imaging method Methods 0.000 abstract description 8
- 238000012360 testing method Methods 0.000 description 9
- 230000007547 defect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- G03G15/0896—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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- 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
- G03G21/1839—Means for handling the process cartridge in the apparatus body
- G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Electrophotography Configuration And Component (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
A developing box, a resetting method and imaging equipment belong to the technical field of imaging, and comprise a box body, a counting mechanism and a driving mechanism, wherein the counting mechanism is arranged on the box body, the driving mechanism comprises a transmission gear, the transmission gear is used for driving the counting mechanism, so that the counting mechanism can move from a first position to a second position to finish counting, and the transmission gear can reciprocate along the axial direction of the transmission gear so as to be in transmission connection with or disconnected with a gear part of the counting mechanism. The reset method comprises the following steps: axially moving the transfer gear to disconnect the transfer gear from the gear portion; rotating the detecting piece of the counting mechanism to enable the detecting piece to move from the second position to the first position; the transfer gear is axially moved to drivingly connect the transfer gear with the gear portion. The image forming apparatus includes the above-described developing cartridge. The developing box and the imaging equipment have the characteristics of high production efficiency and low cost. The resetting method has the characteristics of simplicity and convenience in operation.
Description
Technical Field
The invention relates to the technical field of imaging, in particular to a developing box, a resetting method and imaging equipment.
Background
The image forming apparatus is generally internally provided with a developing cartridge and a photosensitive element cartridge, which constitute a process cartridge detachably mounted in the image forming apparatus, the image forming apparatus forms an electrostatic latent image on a photosensitive drum of the photosensitive element cartridge, the developing cartridge supplies a developer for image formation to the image forming apparatus, and the electrostatic latent image is formed visually when the developer adheres to the photosensitive drum. After the developing box is assembled, the packaging machine printing test can be carried out, and after the test is qualified, the counting mechanism of the developing box can be reset.
However, the reset operation of the existing counting mechanism is troublesome, not only reducing the production efficiency of the developing cartridge, but also increasing the production cost of the developing cartridge.
Disclosure of Invention
The invention aims to provide a developing box and an imaging device, which have the characteristics of high production efficiency and low cost.
The invention also provides a reset method of the counting mechanism of the developing box, which has the characteristics of simple and convenient operation.
Embodiments of the present invention are implemented as follows:
the utility model provides a developing box, its includes box body, counting mechanism and actuating mechanism, and counting mechanism sets up in the box body, and actuating mechanism includes transfer gear, and transfer gear is used for driving counting mechanism to make counting mechanism remove to the second position from first position and accomplish the count, and transfer gear can follow self axial reciprocating motion, thereby with the gear part transmission connection of counting mechanism or release the connection.
Optionally, the driving mechanism further comprises an elastic member, and the elastic member abuts against the transmission gear, so that the transmission gear is in transmission connection with the gear part.
Optionally, the elastic component is a pressure spring, one end of the pressure spring abuts against the box body, and the other end abuts against the transmission gear.
Optionally, the driving mechanism further comprises a driving shaft, the transmission gear is sleeved on the driving shaft and can move along the axial direction of the driving shaft, the driving shaft is provided with a limiting part, and the transmission gear is located between the box body and the limiting part.
Alternatively, when the counting mechanism is in the second position, the transfer gear is axially movable to disconnect the transfer gear from the gear portion, thereby enabling the counting mechanism to move from the second position to the first position.
Optionally, the developing cartridge further includes a protecting cover, the protecting cover is connected to the cartridge body and covers the transfer gear and the counting mechanism, and a reset hole is formed in a position of the protecting cover corresponding to the end face of the transfer gear.
Optionally, the developing cartridge includes a stirring member and a stirring gear, the stirring member is rotatably disposed in the cartridge body and the end portion extends out of the cartridge body, the stirring gear is disposed at the end portion of the stirring member, and the stirring gear forms a transfer gear.
Optionally, the counting mechanism further comprises a connecting piece and a detecting piece, the connecting piece is fixedly connected to the box body, the detecting piece is in threaded connection with the connecting piece, the gear part is rotatably sleeved on the connecting piece and used for driving the detecting piece to rotate, so that the detecting piece is close to or far away from the box body, and the counting mechanism is switched between the first position and the second position.
The reset method of the counting mechanism of the developing box comprises the following steps: axially moving the transfer gear to disconnect the transfer gear from the gear portion; rotating the detecting piece of the counting mechanism to enable the detecting piece to move from the second position to the first position; the transfer gear is axially moved to drivingly connect the transfer gear with the gear portion.
An image forming apparatus includes the above-described developing cartridge.
The beneficial effects of the embodiment of the invention include:
the developing box comprises a box body, a counting mechanism and a driving mechanism, wherein the counting mechanism is arranged on the box body, the driving mechanism comprises a transmission gear, the transmission gear is used for driving the counting mechanism to enable the counting mechanism to move from a first position to a second position to finish counting, and the transmission gear can reciprocate along the axial direction of the transmission gear so as to be in transmission connection with or release connection with a gear part of the counting mechanism. When the printing test is carried out, the transmission gear drives the gear part to rotate positively, so that the counting mechanism is driven to move from the first position to the second position to realize the counting of the counting mechanism, when the printing test is required to be reset, the transmission gear is pressed, so that the transmission gear moves along the axial direction of the transmission gear, and is disconnected with the gear part, at the moment, the counting mechanism can be driven to move from the second position to the first position, and the gear part rotates reversely, so that the resetting of the counting mechanism is realized, the whole process is simple and convenient to operate, the production efficiency of the developing box can be improved, the production cost of the developing box can be reduced, and the defects of the existing developing box are overcome.
The reset method is based on the developing box, has the characteristics of simplicity and convenience in operation, and overcomes the defects of the reset method of the existing counting mechanism.
The imaging device comprises the developing box, has the characteristics of high production efficiency and low cost, and effectively overcomes the defects of the existing imaging device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a structure of a developing cartridge according to an embodiment of the present invention;
FIG. 2 is an exploded view of a drive mechanism and a counting mechanism provided in an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating an assembly of a driving mechanism and a counting mechanism according to an embodiment of the present invention;
FIG. 4 is an exploded view of a counting mechanism according to an embodiment of the present invention;
FIG. 5 is an assembled schematic view of a counting mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a driving mechanism and a counting mechanism provided by an embodiment of the present invention when a detecting member is at a first position;
FIG. 7 is a schematic structural view of a driving mechanism and a counting mechanism provided by an embodiment of the present invention when the detecting member is in the second position;
fig. 8 is a schematic structural view of a driving mechanism and a counting mechanism when a transmission gear is separated from a gear portion according to an embodiment of the present invention.
Icon: 10-developing cartridge; 100-box body; 102-reference sidewalls; 110-a drive gear; 120-developing roller; 130-positioning columns; 200-a driving mechanism; 210-a drive shaft; 212-a limiting part; 220-transfer gear; 230-an elastic member; 300-counting mechanism; 310-connecting piece; 312-external threads; 320-detecting piece; 322-internal threads; 324-detecting boss; 326-a depression; 330-a gear portion; 332-a boss; 400-protecting cover; 410-a reset aperture; 420-avoidance holes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "middle", "upper", "lower", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, 2 and 3, the present embodiment provides a developing cartridge 10, which includes a cartridge body 100, a counting mechanism 300 and a driving mechanism 200, wherein the counting mechanism 300 is disposed on the cartridge body 100, the driving mechanism 200 includes a transmission gear 220, the transmission gear 220 is used for driving the counting mechanism 300, so that the counting mechanism 300 can move from a first position to a second position to complete counting, and the transmission gear 220 can reciprocate along an axial direction thereof, thereby being in transmission connection with or disconnection from a gear portion 330 of the counting mechanism 300.
Wherein the cartridge 100 is for accommodating a developer. The developing cartridge 10 further includes a driving gear 110, a developing roller 120, a stirring member and a stirring gear, wherein the developing roller 120 and the stirring member are rotatably mounted on the cartridge body 100, the developing roller 120 is located outside the cartridge body 100, the stirring member is located inside the cartridge body 100, and the end portion of the stirring member extends out of the cartridge body 100, and the stirring gear is disposed at one end of the stirring member and can rotate along with the rotation of the stirring member. The driving gear 110 is for receiving a driving force of the image forming apparatus to transmit the driving force of the image forming apparatus to the developing cartridge 10, and the driving gear 110 is rotatable under the driving of the driving force to thereby drive the developing roller 120 and the stirring member to rotate. The rotation of the developing roller 120 may transfer the developer in the cartridge body 100 to the photosensitive drum of the photosensitive element cartridge, and the rotation of the stirring member may stir the developer in the cartridge body 100 while driving the stirring gear at the end thereof to rotate synchronously.
Referring to fig. 4 and 5, the counting mechanism 300 may have different structures according to needs, in this embodiment, the counting mechanism 300 includes a connecting member 310, a detecting member 320 and a gear portion 330, the connecting member 310 is fixedly connected to the box 100, in detail, the connecting member 310 is hollow and has one end fixedly connected to one of the side walls of the box 100, and for convenience of subsequent description, the side wall is named as a reference side wall 102. There are many ways of fixing connection, in this embodiment, one end of the connecting member 310 is in interference fit with the positioning post 130 on the reference sidewall 102, and assembly is simple and convenient. In other embodiments, one end of the connecting member 310 may be connected to the reference sidewall 102 in a clamping manner, and the connecting member 310 may be in a solid cylindrical shape. The outer wall of the connector 310 is provided with an external thread 312, and the external thread 312 is located approximately at the middle of the connector 310 in the length direction thereof.
The detecting element 320 is screwed to the connecting element 310, in detail, the detecting element 320 is substantially annular, the inner wall is provided with an internal thread 322 matching with the external thread 312, and the detecting element 320 is sleeved on the connecting element 310 through the internal thread 322 and the external thread 312 matching with each other. The end surface of the detecting member 320 away from the reference sidewall 102 is provided with an arc-shaped detecting boss 324, and the detecting boss 324 is used for abutting against or being away from a feeler lever of the image forming apparatus to realize counting. The outer wall of the detecting member 320 is provided with a recess 326. Because the detecting member 320 is screwed with the connecting member 310, when the detecting member 320 rotates forward and backward relative to the connecting member 310, the detecting member 320 can reciprocate along the axial direction of the connecting member 310, so as to approach or separate from the case 100, so that the counting mechanism 300 is switched between the first position and the second position.
When the counting mechanism 300 is at the first position, the detecting piece 320 is far away from the box body 100, and the detecting boss 324 abuts against the touch rod; when the counting mechanism 300 is at the second position, the detecting member 320 is close to the case 100, the detecting boss 324 is far away from the feeler lever, and at this time, the transfer gear 220 can move axially to disconnect the transfer gear 220 from the gear portion 330, so that the counting mechanism 300 can move from the second position to the first position to complete resetting.
The gear portion 330 is rotatably sleeved on the connecting member 310 and is located between the box 100 and the detecting member 320. The gear portion 330 is used to drive the detecting member 320 to rotate so that the detecting member 320 reciprocates along the axis of the connecting member 310 to approach or depart from the reference sidewall 102 of the cartridge 100. In detail, the end surface of the gear portion 330 far from the case 100 is provided with a protrusion 332, and the protrusion 332 has a long rod shape and one end far from the gear portion 330 is engaged with the recess 326, so that the detecting element 320 can rotate along with the rotation of the gear portion 330.
It should be further noted that, in other embodiments, the counting mechanism 300 may have other structures, such as the gear portion 330 of the counting mechanism 300 and the detecting member 320 are integrally formed and commonly screwed to the connecting member 310. Meanwhile, the gear portion 330 may also be provided with a missing tooth portion, when the detecting member 320 is located at the second position, the missing tooth portion of the gear portion 330 corresponds to the transmission gear 220, and at this time, the gear portion 330 is not engaged with the transmission gear 220 any more, and the transmission gear 220 may easily move along the axial direction of the transmission gear 220, so as to be completely separated from the gear portion 330.
Referring to fig. 2 and fig. 3 again, the transmission gear 220 may be disposed in different manners according to needs, and in this embodiment, the driving mechanism 200 further includes a driving shaft 210, and the transmission gear 220 is sleeved on the driving shaft 210 and can move along the axial direction of the driving shaft 210, so as to improve the stability and directionality of the movement. The driving shaft 210 is provided with a limiting part 212, and the transmission gear 220 is positioned between the box body 100 and the limiting part 212. The limiting portion 212 is used for preventing the transfer gear 220 from being separated from the driving shaft 210 during the axial movement of the driving shaft 210, and ensuring the connection stability between the driving shaft 210 and the transfer gear 220.
The limiting portion 212 may have different structures according to needs, and in this embodiment, the limiting portion 212 includes two elastic blocks disposed at an end of the driving shaft 210 away from the box body 100 at intervals. Under normal conditions, the two elastic blocks are far away from each other, so that the transmission gear 220 is effectively prevented from passing through; when it is required to mount the transfer gear 220 on the driving shaft 210 or to detach the transfer gear 220 from the driving shaft 210, the two elastic blocks may be close to each other or even fit together under an external force so that the transfer gear 220 passes. In other embodiments, the limiting portion 212 may be a stop detachably connected to the end of the driving shaft 210, and the stop may be removed when the transmission gear 220 needs to be mounted or dismounted.
The transfer gear 220 may be mounted to the driving shaft 210 in various manners as needed so that the transfer gear 220 can reciprocate in the axial direction of the driving shaft 210. In this embodiment, the transfer gear 220 is provided with a mounting hole that is clearance-fitted with the driving shaft 210 so that the transfer gear 220 can easily slide on the driving shaft 210. In other embodiments, the transfer gear 220 may also be mounted on the drive shaft 210 by a linear bearing.
Further, the driving mechanism 200 may further include an elastic member 230, where the elastic member 230 abuts against the transmission gear 220, so that the transmission gear 220 is in driving connection with the gear portion 330. The elastic member 230 is provided so that the transfer gear 220 and the gear portion 330 can be stably in a transmission connection state, thereby ensuring the normal operation of the counting mechanism 300.
The elastic member 230 may have different structures according to the need, in this embodiment, the elastic member 230 is a compression spring, and the compression spring is sleeved on the driving shaft 210, and one end of the compression spring abuts against the box body 100, and the other end abuts against the transmission gear 220. In other embodiments, the elastic member 230 may have other structures, such as a spring, where one end of the spring is clamped to the driving shaft 210 and the other end abuts against the transmission gear 220.
The specific structural forms of the driving shaft 210 and the transmission gear 220 can be set according to the needs, in this embodiment, the stirring member forms the driving shaft 210, and the stirring gear forms the transmission gear 220, that is, the stirring member can provide power for the counting mechanism 300 while stirring the developer in the cartridge body 100, so that the driving shaft 210 and the transmission gear 220 do not need to be additionally provided, the structure of the whole developing cartridge 10 can be simplified, and the manufacturing cost of the developing cartridge 10 can be reduced. In other embodiments, the drive shaft 210 and transfer gear 220 may be separate shafts and wheels from the stirring element and stirring gear, such that the drive of the counting mechanism 300 is not affected by the stirring element.
The developing cartridge 10 further includes a protecting cover 400, and the protecting cover 400 is connected to the cartridge body 100 and covers the transfer gear 220 and the counting mechanism 300 to protect the transfer gear 220 and the counting mechanism 300 from being damaged by external force. The protecting cover 400 may be connected to the case 100 in various ways as required, and in this embodiment, the protecting cover 400 is connected to the case 100 by bolts. In other embodiments, the cover 400 may also be snap-coupled to the case 100.
The cover 400 is provided with a reset hole 410 at a position corresponding to the end surface of the transfer gear 220, and a user can press the end surface of the transfer gear 220 through the reset hole 410, thereby moving the transfer gear 220 in the axial direction of the driving shaft 210 and approaching the case 100 so as to be separated from the gear portion 330. The position of the protecting cover 400 corresponding to the detecting member 320 is provided with a clearance hole 420, so that the detecting boss 324 of the detecting member 320 can expose the protecting cover 400 and collide with the feeler lever to realize counting.
The working principle and process of the present developing cartridge 10 are specifically as follows:
before the print test is performed, the transfer gear 220 and the gear portion 330 are in engagement, and the detector 320 is away from the cartridge 100, with the counting mechanism 300 in the first position (see fig. 6).
When the print test is performed, the driving shaft 210 drives the transfer gear 220 to rotate, the transfer gear 220 and the gear portion 330 are in a meshed state due to the abutting action of the elastic member 230, so that the transfer gear 220 can drive the gear portion 330 to rotate forward, and due to the matching transmission action of the protruding portion 332 and the recessed portion 326, the gear portion 330 can drive the detecting member 320 to rotate forward, and due to the fact that the detecting member 320 and the connecting member 310 are in threaded matching, the detecting member 320 moves along the axial direction of the connecting member 310 while rotating so as to be close to the box body 100, at the moment, the counting mechanism 300 is in the second position (see fig. 7), the internal thread 322 of the detecting member 320 is separated from the external thread 312 of the connecting member 310, so that the detecting member 320 can only rotate around the axis of the connecting member 310 under the driving of the gear portion 330, and does not move along the axial direction of the connecting member 310, and at the moment, the counting mechanism 300 completes counting.
After the printing test is finished, the counting mechanism 300 needs to be reset, the detection piece 320 needs to be driven to reversely rotate, but because the detection piece 320 and the gear part 330 are in linkage relation, and the transmission gear 220 and the gear part 330 are in transmission connection (namely meshing), the transmission gear 220 can interfere and limit the gear part 330, so that the detection piece 320 cannot reversely rotate, the whole counting mechanism 300 needs to be reset after being detached in the prior art, the operation is very troublesome, and the technical scheme provided by the application does not need to detach the whole counting mechanism 300 because the transmission gear 220 can move along the driving shaft 210 to be close to the box body 100.
The specific reset method comprises the following steps: the user presses the end surface of the transfer gear 220 through the reset hole 410, so that the transfer gear 220 overcomes the force of the elastic member 230, and moves along the axial direction of the driving shaft 210 to approach the case 100, so that the transfer gear 220 is disconnected (i.e., separated) from the transfer gear 220, at this time, since the transfer gear 220 no longer interferes with and limits the gear portion 330 (see fig. 8), the gear portion 330 can rotate along with the rotation of the detecting member 320, and thus the detecting member 320 can be easily and conveniently driven to rotate reversely, so that the detecting member 320 is far away from the case 100, and the counting mechanism 300 is at the first position again. Finally, the end surface of the transfer gear 220 is released, the transfer gear 220 moves in the axial direction of the driving shaft 210 away from the case 100 by the elastic member 230, and is in driving connection (i.e., engaged) with the gear portion 330 again, and the reset is completed.
The developing cartridge 10 comprises a cartridge body 100, a counting mechanism 300 and a driving mechanism 200, wherein the counting mechanism 300 is arranged on the cartridge body 100, the driving mechanism 200 comprises a transmission gear 220, the transmission gear 220 is used for driving the counting mechanism 300, so that the counting mechanism 300 can move from a first position to a second position to finish counting, and the transmission gear 220 can reciprocate along the axial direction of the transmission gear 220 so as to be in transmission connection with or disconnection with a gear part 330 of the counting mechanism 300. When a printing test is carried out, the transfer gear 220 drives the gear part 330 to rotate positively, so that the counting mechanism 300 is moved from the first position to the second position to realize counting, when the counting mechanism needs to reset, the transfer gear 220 is pressed, so that the transfer gear 220 moves along the axial direction of the driving shaft 210, and is disconnected with the gear part 330, and the detecting element 320 can be driven to rotate reversely to be far away from the box body 100 at the moment, so that the counting mechanism 300 is moved from the second position to the first position to realize resetting, the whole process is simple and convenient to operate, the production efficiency of the developing box 10 can be improved, the production cost of the developing box 10 can be reduced, and the defects of the existing developing box are overcome.
Finally, it should be noted that, the transmission gear 220 may be mounted on the driving shaft 210 through a unidirectional transmission mechanism (such as a ratchet, etc.), when the printing test is performed, the transmission gear 220 is locked with the driving shaft 210, so that the gear portion 330 and the detecting member 320 may be driven to rotate in a forward direction, and when the resetting is required, the user may drive the gear portion 330 and the detecting member 320 to rotate in a reverse direction, and at this time, the transmission gear 220 is unlocked from the driving shaft 210, so that the rotation may be performed under the driving of the gear portion 330. The structure can also release the interference and the limit of the transmission gear 220 to the gear part 330, the reset of the counting mechanism 300 is simply and conveniently realized, and the transmission gear 220 does not need to move along the axial direction of the driving shaft 210 and can be always in a meshed state with the gear part 330; the transmission gear 220 may be mounted on a power shaft independent of the case 100.
The present embodiment also provides an image forming apparatus including the above-described developing cartridge 10, which has the characteristics of high production efficiency and low cost, and effectively overcomes the drawbacks of the existing image forming apparatus.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The developing box is characterized by comprising a box body, a counting mechanism and a driving mechanism, wherein the counting mechanism is arranged on the box body, the driving mechanism comprises a transmission gear, the transmission gear is used for driving the counting mechanism so as to enable the counting mechanism to move from a first position to a second position to finish counting, and the transmission gear can reciprocate along the axial direction of the transmission gear so as to be in transmission connection with or disconnected from a gear part of the counting mechanism;
the driving mechanism further comprises an elastic piece, and the elastic piece abuts against the transmission gear to enable the transmission gear to be in transmission connection with the gear part.
2. The developing cartridge according to claim 1, wherein the elastic member is a compression spring having one end abutting against the cartridge body and the other end abutting against the transmission gear.
3. The developing cartridge according to claim 1, wherein the driving mechanism further comprises a driving shaft, the transmission gear is sleeved on the driving shaft and is movable in an axial direction of the driving shaft, the driving shaft is provided with a stopper portion, and the transmission gear is located between the cartridge body and the stopper portion.
4. A developing cartridge according to claim 1, wherein said transmitting gear is axially movable when said counting mechanism is located at said second position to disconnect said transmitting gear from said gear portion, thereby enabling said counting mechanism to be moved from said second position to said first position.
5. The developing cartridge according to claim 1, further comprising a protective cover which is attached to the cartridge body and covers the transfer gear and the counting mechanism, wherein a reset hole is provided in a portion of the protective cover corresponding to an end face of the transfer gear.
6. The developing cartridge according to claim 1, wherein the developing cartridge includes a stirring member rotatably provided in the cartridge body with an end portion extending out of the cartridge body, and a stirring gear provided at an end portion of the stirring member, the stirring gear forming the transfer gear.
7. The developing cartridge according to any one of claims 1 to 6, wherein the counting mechanism further comprises a connecting member and a detecting member, the connecting member is fixedly connected to the cartridge body, the detecting member is screwed to the connecting member, the gear portion is rotatably sleeved on the connecting member, and is used for driving the detecting member to rotate so as to make the detecting member approach to or separate from the cartridge body, thereby switching the counting mechanism between the first position and the second position.
8. A reset method of the counting mechanism of the developing cartridge according to any one of claims 1 to 7, comprising: axially moving the transfer gear to disconnect the transfer gear from the gear portion; rotating a detecting member of the counting mechanism to move the detecting member from the second position to the first position; the transfer gear is axially moved to drivingly connect the transfer gear with the gear portion.
9. An image forming apparatus comprising the developing cartridge according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910045723.6A CN109683455B (en) | 2019-01-17 | 2019-01-17 | Developing cartridge, reset method, and image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910045723.6A CN109683455B (en) | 2019-01-17 | 2019-01-17 | Developing cartridge, reset method, and image forming apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN109683455A CN109683455A (en) | 2019-04-26 |
| CN109683455B true CN109683455B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910045723.6A Active CN109683455B (en) | 2019-01-17 | 2019-01-17 | Developing cartridge, reset method, and image forming apparatus |
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| Country | Link |
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| CN (1) | CN109683455B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11040843B2 (en) * | 2019-08-09 | 2021-06-22 | Toshiba Tec Kabushiki Kaisha | Image forming apparatus |
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| Publication number | Publication date |
|---|---|
| CN109683455A (en) | 2019-04-26 |
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