CN117724312A - Toner storage and supply device and image forming apparatus - Google Patents
Toner storage and supply device and image forming apparatus Download PDFInfo
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- CN117724312A CN117724312A CN202410178626.5A CN202410178626A CN117724312A CN 117724312 A CN117724312 A CN 117724312A CN 202410178626 A CN202410178626 A CN 202410178626A CN 117724312 A CN117724312 A CN 117724312A
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- 238000001514 detection method Methods 0.000 claims abstract description 93
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 230000006698 induction Effects 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 17
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 22
- 230000007246 mechanism Effects 0.000 description 9
- 238000012546 transfer Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
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- 238000000926 separation method Methods 0.000 description 2
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Abstract
The invention relates to the technical field of printing equipment, and provides a toner storage and supply device and image forming equipment, wherein the toner storage and supply device comprises: a housing; the driving gear set is arranged on the shell; detecting a gear set, comprising: a transmission gear; the detection gear comprises a gear body, wherein the gear body is provided with a ring tooth part, an induction area and a positioning area which are staggered along the axial direction of the gear body; the elastic component is arranged on the shell and provided with an elastic arm which is elastically abutted towards the positioning area, the elastic arm is abutted against the positioning area towards the first direction, and the meshing position of the transmission gear and the detection gear is positioned in the first direction of the positioning area. The present invention can stably provide detection information to an image forming apparatus during a printing operation, and is structurally stable without affecting a toner supply process.
Description
Technical Field
The present invention relates to the field of printing apparatuses, and more particularly, to a toner storage and supply device and an image forming apparatus.
Background
The image forming apparatus has various or one of functions of printing, copying, scanning, facsimile, and the like, wherein the image forming apparatus includes a body, and a paper feed cassette, a conveying mechanism, an image forming section, and a fixing section provided in the body, in which printing media for recording images are stacked and stored, the conveying mechanism conveys the printing media to the image forming section, the image forming section transfers the images onto the printing media, and finally the images on the printing media are fixed on the corresponding surfaces of the printing media via the fixing section.
In a general image forming apparatus, a storage device storing toner for forming an image is provided in an image forming portion, the storage device supplies the toner in the device to a photosensitive member by a developing roller, and the photosensitive member gathers the toner to form an electrostatic latent image and transfers the electrostatic latent image to a printing medium by a transfer member. Since it is necessary to ensure sufficient supply of the toner in the storage device, a stirring member is generally provided in the toner storage hopper to enable the developing roller to sufficiently absorb the toner and form a toner layer having a uniform thickness.
Since the toner is consumed and replaced after use, the storage device needs to be identified inside the image forming apparatus, and an independent gear is provided on the storage device to be detected by the image forming apparatus for the detection process of the image forming apparatus, but the gear affects the rotating member in the storage device due to shake or the like generated during the machine transportation or operation after the detection, thereby affecting the image forming accuracy.
Disclosure of Invention
In order to overcome the disadvantages of the prior art, an object of the present invention is to provide a toner storage and supply device and an image forming apparatus capable of stably providing detection information to the image forming apparatus during a printing operation, and having a stable structure without affecting a toner supply process.
In a first aspect, the present invention provides a toner storage and supply device including:
a housing;
a driving gear set that receives a driving force from the image forming apparatus;
detect the gear train, set up in on the shell, include:
a transmission gear receiving a driving force of the driving gear set;
the detection gear comprises a gear body, wherein the gear body is provided with a ring tooth part, an induction area and a positioning area which are staggered along the axial direction of the gear body, the ring tooth part comprises a joint tooth area which can be meshed with the transmission gear and a non-transmission area which can not receive the driving force of the transmission gear along the surrounding closing direction of the ring tooth part, and the positioning area is provided with a first positioning part, a second positioning part and a clamping interval formed by the first positioning part and the second positioning part;
an elastic member mounted on the housing and having an elastic arm elastically abutting toward the positioning area, the elastic arm including a first portion and a second portion having a predetermined angle;
the elastic arm is propped against the positioning area towards a first direction, the meshing position of the transmission gear and the detection gear is located in the first direction of the positioning area, and when the elastic arm is buckled on the clamping interval, the first part is propped against the first positioning part and the second part is propped against the second positioning part;
wherein when the transmission gear drives the detection gear to rotate from an initial position, the sensing area is sensed by the image forming apparatus until the ring gear portion rotates to the non-transmission area and is disengaged from the transmission gear, and the elastic arm is caught on the catching space across the first positioning portion to fix the detection gear at a disengaged position with respect to the housing.
The toner storage and supply device provided according to the embodiment of the first aspect of the present invention has at least the following advantages:
in the toner storage and supply device, after the driving gear set receives driving force from equipment in the primary operation process, the first roller body and the stirring member are driven to operate respectively, and in the primary operation process, the transmission gear receives the power to drive the detection gear to rotate, so that the detection gear starts to rotate from an initial position, an initial sensing part on a sensing area can be sensed by the image forming equipment firstly in the process, meanwhile, the equipment knows that the storage and supply device is in an operation state in the continuous rotation process of the detection gear, and the storage and supply device is a new replaced or replenished part according to the sensing of at least one first sensing part by the image forming equipment, so that the toner storage state in the toner storage and supply device can be updated, and the follow-up of the storage state in the storage and supply device is facilitated according to the printing quantity or other modes in the subsequent process. The invention also adopts a mode of abutting the elastic component, when the detection gear rotates to be separated from the engagement with the transmission gear, the elastic component enables the detection gear to be fixed relative to the shell by clamping on the clamping interval, so that the stable separation position between the detection gear and the transmission gear is maintained, the detection gear and the transmission gear are not contacted due to shaking, shaking and other reasons, and the normal operation of the storage and supply device is ensured.
In a preferred embodiment of the present invention, the housing includes a shell and an end cover mounted on a side surface of the shell, the detection gear set is disposed between the end cover and the shell, the end cover has a hollowed-out portion, and a portion of the sensing area is exposed on the hollowed-out portion of the end cover so as to be sensed by the image forming apparatus.
In a preferred embodiment of the present invention, the sensing area includes an initial sensing portion, at least one first sensing portion, and a second sensing portion sequentially disposed along a rotation direction of the detection gear, and the second sensing portion is capable of being sensed by the image forming apparatus when the elastic arm is locked on the locking space.
In a preferred embodiment of the present invention, a poking groove is disposed between the second sensing portion and the initial sensing portion, the hollowed portion has a first side and a second side disposed downstream of the first side in a rotation direction of the detection gear, a portion of the sensing area is exposed between the first side and the second side, and the engaging tooth area has a start end and a rear end adjacent to two ends of the non-transmission area, wherein, in the disengaged position, a distance between the poking groove and the second side is greater than or equal to a distance between an opposite portion of the ring tooth portion and the transmission gear and the start end in the disengaged position.
In a preferred embodiment of the present invention, when the poking groove reaches the first side edge, the elastic member is separated from the clamping space and pushes against the outermost end of the second positioning portion so as to rotate the detection gear to the initial position.
In a preferred embodiment of the present invention, the hollowed-out portion includes a clearance portion located at the first side edge and disposed outside the detection gear shaft.
In a preferred embodiment of the present invention, the positioning area is provided with an annular surface disposed around the axis of the gear body, the first positioning portion and the second positioning portion extend away from the axis from the annular surface, the annular surface is provided with a guide portion located upstream of the first positioning portion in the rotation direction of the detection gear, a first distance between a tip of the guide portion and the axis of the annular surface is smaller than a second distance between a tip of the first positioning portion and the axis of the annular surface, and the guide portion is inclined in a direction opposite to the rotation direction of the detection gear.
In a preferred embodiment of the present invention, the drive gear set is located on a first side of the housing, the detection gear set is located on a second side of the housing opposite the first side, and the drive gear is drivingly connected to the stirring member.
In a second aspect, the present invention also provides an image forming apparatus including:
the main body of the device is provided with a plurality of air channels,
a toner storage and supply device according to an embodiment of the first aspect of the present invention includes a first roller for supplying toner;
a photosensitive member including a drum assembly for receiving toner supplied from the first roller;
a detection member for sensing an initial sensing portion and at least one first sensing portion on the sensing region at a first angular position;
the initial sensing part is positioned at the first angle position in the initial position and is sensed by the sensing member, and when the transmission gear drives the sensing gear to rotate from the initial position, the initial sensing part and the at least one first sensing part sequentially pass through the first angle position.
An image forming apparatus provided according to an embodiment of the second aspect of the present invention has at least the following advantageous effects:
the image forming apparatus uses the sensed states of the initial sensing part and the at least one first sensing part in the operation process through the detecting member, so as to acquire the state of the toner storage and supply device, so as to confirm whether to update the monitoring state of the toner storage and supply device at the moment.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure and/or process particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a schematic view of an image forming apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a toner storage and supply device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a toner storing and supplying device at a first viewing angle position according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a toner storing and supplying device at a second viewing angle position according to an embodiment of the present invention;
FIG. 5 is an enlarged partial schematic view of FIG. 2A;
fig. 6 is a schematic view showing an internal structure of a toner storage and supply device according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a connection structure between a transmission gear and a detection gear in the detection gear set provided in FIG. 3;
FIG. 8 is a schematic view of the connection structure provided in FIG. 7 from another perspective, with the sensing gear in an intermediate position;
FIG. 9 is a schematic view of the structure between the connection structure and the elastic member provided in FIG. 7;
FIG. 10 is a schematic view of the detection gear shown in FIG. 7;
FIG. 11 is a schematic view of the bottom structure of a detection gear in an initial position according to an embodiment of the present invention;
FIG. 12 is a schematic view of the bottom structure of a detection gear in a disengaged position according to an embodiment of the present invention;
FIG. 13 is a schematic top view of a detection gear in an initial position according to an embodiment of the present invention;
FIG. 14 is a schematic top view of a detection gear in an intermediate position according to an embodiment of the present invention;
FIG. 15 is a schematic top view of a detection gear in a disengaged position according to an embodiment of the present invention;
reference numerals illustrate:
100 apparatus main body, 110 medium storage box, 120 conveying mechanism, 130 image forming part, 131 exposure device, 132 transfer member, 140 fixing part, 150 medium discharge part;
200 toner storing and supplying device, 210 housing, 211 accommodating bin, 212 supply port, 220 first roller body, 230 stirring member, 240 driving gear set, 241 first gear, 242 second gear, 250 detecting gear set, 251 driving gear, 252 detecting gear, 253 elastic member, 260 second roller body;
300 gear body, 310 ring tooth part, 311 joint tooth area, 311a initial end, 311b rear end, 312 non-transmission area, 320 induction area, 321 initial induction part, 322 first induction part, 323 second induction part, 324 groove shifting, 330 positioning area, 331 first positioning part, 332 second positioning part, 333 clamping interval, 334 annular surface, 335 guide part;
400 a resilient arm, 410 a first portion, 420 a second portion;
500 end caps, 510 hollowed-out parts, 511 first side edges, 512 second side edges, 513 empty-avoiding parts.
Detailed Description
The following will describe embodiments of the present invention in detail with reference to the drawings and examples, thereby solving the technical problems by applying technical means to the present invention, and realizing the technical effects can be fully understood and implemented accordingly. It should be noted that these specific descriptions are only for easy and clear understanding of the present invention by those skilled in the art, and are not meant to be limiting; for example, the first and second embodiments of the present invention are not limited thereto, but are merely for describing serial numbers of a plurality of identical or similar devices and mechanisms, and those skilled in the art may readjust the serial numbers for convenience of description or in the technical scheme arranging process; and various embodiments have been described with alternatives to some of the mechanisms, and these alternatives may be applied to other identical or similar devices, mechanisms; and as long as no conflict is formed, each embodiment of the present invention and each feature of each embodiment may be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.
The technical scheme of the invention is described in detail below through the attached drawings and specific embodiments.
The present invention provides an image forming apparatus in an embodiment of an aspect, and an image forming device of the present invention is described below.
Referring to fig. 1, an image forming apparatus includes an apparatus main body 100, and a medium receiving box 110, a conveying mechanism 120, an image forming part 130, a fixing part 140, and a medium discharging part 140 provided in the apparatus main body 100, wherein a printing medium is stored in the medium receiving box 110, a medium conveying path is provided in the apparatus main body 100, the image forming part 130, the fixing part 140, and the medium discharging part 140 are all provided on the medium conveying path, and the medium discharging part 140 is provided at an end position of the medium conveying path, the fixing part 140 is provided at a downstream position of the image forming part 130, the conveying mechanism 120 is used to transfer the printing medium on the medium receiving box 110 onto the image forming part 130, the image forming part 130 forms an image therein and then transfers the image on the printing medium to the printing medium, and then the image on the printing medium is fixed by the fixing part 140 and finally is discharged to the outside of the apparatus main body 100 via the medium discharging part 150.
Specifically, the image forming section 130 includes a toner storage and supply device, a photosensitive member having thereon a drum assembly having a surface made of a photosensitive material, a transfer member 132 for receiving toner from the toner storage and supply device, and an exposure device 131 for emitting light to the surface of the drum assembly to form an electrostatic latent image, the toner forming an image under the traction of the electrostatic latent image, and the transfer member 132 further transfers the formed image onto a printing medium conveyed by the conveying mechanism 120.
Therein, a detecting member (not shown) for detecting the operation on the toner storage and supply device 200 to confirm whether the state of the toner storage and supply device 200 needs to be updated is further provided in the apparatus main body 100.
In another embodiment, a toner storage and supply device detachably mounted on the apparatus main body 100 is provided, and the toner storage and supply device of the present invention will be specifically described below.
Referring to fig. 2 to 6, the toner storage and supply device 200 includes a housing 210, a first roller body 220 having a receiving chamber 211 for storing toner therein and a supply port 212 through which toner can be introduced and discharged, a stirring member 230 having a plurality of stirring blades or stirring protrusions provided thereon, a driving gear set 240 for receiving a driving force from the image forming apparatus, and a detection gear set 250, the first roller body 220 being mounted on the supply port 212 and having a supply surface capable of adsorbing toner, the toner being adsorbed from the receiving chamber 211 through the supply surface and being transported out of the supply port 212, and being supplied to the photosensitive member, the stirring member 230 being rotatably provided in the receiving chamber 211 and having a plurality of stirring blades or stirring protrusions provided thereon, the driving gear set 240 being adapted to receive the driving force from the first roller body 220 when rotated, and including a first gear 241 and a second gear 242 which are in driving engagement or indirect engagement with each other, the first gear 241 being coupled to one end of the first roller body 220 to drive one end of the first roller body 220 and the second gear 242 being coupled to one end of the stirring member 230 to drive rotation of the stirring member 230.
And, in cooperation with the image forming apparatus, the detection gear set 250 is provided on the housing 210, and includes a transmission gear 251, a detection gear 252, and an elastic member 253, the transmission gear 251 being drivingly connected with the first roller 220 or the stirring member 230 to rotate with the rotation of the first roller 220 or the stirring member 230. Referring to fig. 7 to 9, the detection gear 252 includes a gear body 300, and the gear body 300 is rotatably disposed on the housing 210, and has a ring gear portion 310, a sensing area 320 and a positioning area 330 staggered along a rotation axis direction (i.e., an axial direction X in fig. 8), the ring gear portion 310 is disposed in a ring shape around the rotation axis, and includes a engaging gear portion 311 and a non-transmission area 312 along a surrounding closing direction, wherein the engaging gear portion 311 can be meshed with the transmission gear 251 to enable the transmission gear 251 to drive the detection gear 252 to rotate, and the ring gear portion 310 is separated from the transmission gear 251 in the non-transmission area 312, so as not to receive a driving force from the transmission gear 251. The sensing region 320 includes an initial sensing portion 321 and at least one first sensing portion 322 sequentially disposed along the rotation direction of the sensing gear 252, and referring to fig. 11 to 15, the initial sensing portion 321 and the first sensing portion 322 sequentially pass through the sensing position of the sensing member of the image forming apparatus when the sensing gear 252 is rotated in the W direction by the driving gear 251, so as to be recognized by the image forming apparatus.
Referring to fig. 9 to 12, the elastic member 253 is mounted on the housing 210 and has an elastic arm 400 elastically abutted against the positioning region 330, the elastic arm 400 being abutted against the positioning region 330 of the gear body 300, wherein the positioning region 330 is provided with an annular surface 334 disposed around the axis of the gear body 300 and a first positioning portion 331 and a second positioning portion 332 extending away from the axis from the annular surface 334, a clamping space 333 for clamping the elastic arm 400 is formed between the first positioning portion 331 and the second positioning portion 332, and when the elastic arm 400 is clamped on the clamping space 333, the detection gear 252 is fixed on the housing 210 due to the fact that the elastic member 253 is fixed relative to the housing 210.
Further, the engaging tooth region 311 has a start end 311a and a rear end 311b adjacent to both ends of the non-transmission region 312, in the initial position, the transmission gear 251 is engaged with the ring tooth portion 310 and the initial sensing portion 321 is in an angular position that can be sensed by the image forming apparatus in the rotational direction of the detection gear 252, the elastic arm 400 abuts on the annular surface 334 when the detection gear 252 rotates, and the first positioning portion 331 first contacts the elastic arm 400 and pushes the elastic arm 400 to move in a direction away from the rotational axis in the rotational direction of the gear body 300 until the elastic arm 400 passes around the outermost side of the first positioning portion 331 and then enters into the chucking space 333 between the first positioning portion 331 and the second positioning portion 332.
In practice, when the driving gear 251 drives the detecting gear 252 to rotate from the initial position, the initial sensing part 321 and the first sensing part 322 are sequentially sensed by the image forming apparatus until the ring gear part 310 rotates to the rear end 311b and is separated from the driving gear 251, and the elastic arm 400 is clamped on the clamping interval 333 across the first positioning part 331, so that the detecting gear 252 is fixed at the separated position with respect to the housing 210.
In the initial operation process of the toner storage and feeding device 200, the driving gear set 240 receives the driving force from the equipment and drives the first roller 220 and the stirring member 230 to operate respectively, and in the initial operation process, the driving gear 251 receives the driving force and drives the detecting gear 252 to rotate, so that the detecting gear 252 rotates along the initial position, the initial sensing part 321 on the sensing area 320 can be sensed by the image forming equipment first in the process, meanwhile, the equipment knows that the storage and feeding device is in an operation state in the continuous rotation process of the detecting gear 252, and the storage and feeding device is a new replaced or replenished component in the process of being sensed by the image forming equipment according to at least one first sensing part 322, thereby being capable of updating the toner storage state in the toner storage and feeding device 200, and being beneficial to continuously according to the storage state in the storage and feeding device according to the printing quantity or other modes in the subsequent process.
The invention also adopts a mode of abutting the elastic member 253, when the detection gear 252 rotates to be separated from the engagement with the transmission gear 251, the elastic member 253 enables the detection gear 252 to be fixed relative to the shell by being clamped on the clamping interval 333, so that the stable separation position with the transmission gear 251 is maintained, the detection gear 252 is not contacted with the transmission gear 251 due to shaking, shaking and other reasons, and the normal operation of the storage and supply device is ensured.
In addition, the initial sensing portion 321 and at least one first sensing portion 322 on the sensing area 320 may be configured according to a specific form of the detected signal on the image forming apparatus, for example, the detecting member is an optical sensor, and emits the detected light to a specific angular position on the sensing area 320, where the initial sensing portion 321 can be sensed by the detecting optical sensor, and the second sensing portion 323 can be sensed by the detecting member after the initial sensing portion 321 when the initial rotation for detection starts, so as to obtain the corresponding detected signal. It may also be specifically configured that, since the initial sensing portion 321 in this embodiment has a convex structure on the gear body 300, it is capable of blocking or reflecting the detection light of the optical sensor to generate a positive signal by the detection member, when the initial sensing portion 321 leaves the detection position when the detection member rotates, the detection light is not blocked to generate a negative signal until the first sensing portion 322 at the downstream is detected by the detection member, and the light is blocked again to generate a positive signal, and if the detection rule of the detection member is satisfied, it is described that the toner storage and supply device 200 is a newly configured device. In addition, the detection mode design of the toner storage and supply device 200 can be performed by determining the sensing duration through the angle occupied by the initial sensing portion 321 and the first sensing portion 322 or determining the interval duration through the interval between the initial sensing portion 321 and the first sensing portion 322, the design mode is flexible, an effective identification function can be achieved, whether the toner storage device is in an unused state or in a state after replenishment reset can be effectively judged, and the phenomenon of misloading of the storage and supply device can be prevented according to the specific setting of detection signals, so that the continuous use of defective products is avoided, and the influence on image forming equipment is caused.
In the inspection process of the image forming apparatus of the present embodiment, referring to fig. 12, in the initial position, the initial sensing portion 321 is located at the first angular position and is sensed by the inspection member, and when the driving gear 251 drives the inspection gear 252 to rotate from the initial position, the initial sensing portion 321 and at least one first sensing portion 322 sequentially pass through the first angular position P to be sensed by the inspection member.
In one embodiment, referring to fig. 3 and 5, the housing 210 includes a case and an end cap 500 detachably mounted on a side of the case, the detection gear set 250 is disposed between the end cap 500 and the case and is stably retained on the case by the end cap 500, wherein the end cap 500 has a hollowed-out portion 510 on an outer side thereof, and the hollowed-out portion 510 is opened away from the toner supply device, so that a portion of the sensing region 320 is exposed on the hollowed-out portion 510 of the end cap 500, thereby being sensed by a detection member on the image forming apparatus.
Of course, the hollowed-out portion 510 can also expose the whole sensing area 320 and even the whole detecting gear 252, and the end cap 500 can protect the whole detecting gear set 250 including the detecting gear 252 by setting the exposed portion.
In the sensing area 320, in order to better adapt to the detection state of the detecting member, since the initial sensing portion 321 is detected by the detecting member at the initial position, and corresponds to the initial position, the sensing area 320 further includes a second sensing portion 323 disposed at a position downstream of the at least one first sensing portion 322 in the rotation direction of the detecting gear 252, and when the elastic arm 400 is clamped to the clamping interval 333, the second sensing portion 323 can be sensed by the image forming apparatus, corresponding to the initial sensing portion 321 being detected by the detecting member at the initial position. In practice, the initial sensing portion 321 of the detection gear 252 in the initial position is detected by the detecting member, and in the final disengaged position, the second sensing portion 323 is detected by the detecting member, so that whether the toner storage and supply device 200 is reset or is used all the time, can be sensed by the detecting member on the image forming apparatus, and thus the detecting member can also be used to detect whether the toner storage and supply device 200 is present on the image forming portion 130.
In a further development, a poking groove 324 is arranged between the second sensing portion 323 and the initial sensing portion 321, the hollowed portion 510 is provided with a first side 511 and a second side 512 arranged downstream of the first side 511 along the rotation direction of the detection gear 252, and a part of the sensing region 320 is exposed between the first side 511 and the second side 512, wherein when the sensing region is in a disengaged position, the distance between the poking groove 324 and the second side 512 is greater than or equal to the distance between the opposite position of the lower ring gear portion 310 and the transmission gear 251 and the starting end 311 a. The shifting groove 324 may be used in the resetting process of the toner storage and feeding device 200, referring to fig. 3 and 5, after the toner storage and feeding device 200 is replenished through the replenishing port, the detecting gear 252 may be manually or automatically snapped into the shifting groove 324 in the W direction, that is, the rotation direction of the original detecting gear 252, so that the elastic arm 400 is separated from the gripping space 333 and bypasses the second positioning portion 332 and then abuts against the annular surface 334 again, and since the distance between the shifting groove 324 and the first side 511 is greater than the distance S0 between the opposite portion of the annular tooth portion 310 and the driving gear 251 and the starting end 311a in this position, the distance S1 that can be shifted during the resetting and shifting process of the detecting gear 252 is greater than or equal to S0, so that in this embodiment, S1 is equal to S0, the detecting gear 252 is retracted in the disengaged position until the shifting groove 324 reaches the second side 512, and the detecting gear 252 is just reset to the original position.
Or in another embodiment, S1 is greater than S0, but when the pulling groove 324 reaches the second side edge 512, the elastic arm 400 just bypasses the second positioning portion 332 and further pushes the detecting gear 252 by its own elastic force through the second positioning portion 332 to restore the original position, that is, when the pulling groove 324 reaches the first side edge 511, the elastic member 253 breaks away from the clamping space 333 and pushes the outermost end of the second positioning portion 332 to rotate the detecting gear 252 to the original position, so that the pulling is convenient, and stable engagement of the retaining ring tooth portion 310 and the transmission gear 251 can be restored.
In other expandable embodiments, the hollowed-out portion 510 includes a clearance portion 513 disposed on the first side 511 axially outside the detection gear 252. The clearance portion 513 allows the finger tip to enter, and allows the finger to return to the correct position when the finger returns to the detection gear 252, thereby realizing accurate reset.
While in some embodiments the resilient arm 400 abuts against the positioning region 330 in the first direction U, the engagement position of the detection gear 252 with the drive gear 251 is located in the first direction U of the positioning region 330, and referring to fig. 10, when the resilient arm 400 abuts against the Y direction, the force is applied to bring the detection gear 252 closer to the drive gear 251, and the stable engagement between the detection gear 252 and the drive gear 251 is maintained when the engagement teeth regions 311 are engaged, while the compactness of the detection gear 252 on the housing 210 is maintained, preventing loosening, regardless of whether the detection gear 252 is in the disengaged position or other positions.
Referring to fig. 6 to 9, the annular surface 334 has a guide portion 335 located upstream of the first positioning portion 331 in the rotational direction of the detection gear 252, a first distance between the tip of the guide portion 335 and the axis of the annular surface 334 is smaller than a second distance between the tip of the first positioning portion 331 and the axis of the annular surface 334, and the guide portion 335 is inclined in the opposite direction to the rotational direction of the detection gear 252. Since the distance from the axis on the first positioning portion 331 is longer and the span of the elastic arm 400 is larger during the operation of the detection gear 252, the guide portion 335 is provided to push the elastic arm 400 outwards for a certain distance in advance, and smoothly press against and bypass the first positioning portion 331 when the detection gear 252 continues to rotate, so that the detection gear 252 enters the clamping space 333, and the resistance generated by pushing the elastic arm 400 away from the detection gear 252 is reduced.
Further, the guide portion 335, the first positioning portion 331 and the second positioning portion 332 are inclined in the opposite direction to the rotation direction of the detection gear 252, and the elastic arm 400 is inclined and protruded to lean against the positioning area 330 in the rotation direction of the detection gear 252, so that the resistance of the elastic arm 400 being pushed up by the detection gear 252 can be reduced.
Referring to fig. 10, the elastic arm 400 includes a first portion 410 and a second portion 420 having a predetermined angle, wherein an opening position of the predetermined angle faces outward away from the axis, when the ring gear portion 310 is separated from the transmission gear 251, the oblique side of the first portion 410 relative to the annular surface 334 causes the elastic arm 400 to move outward relative to the guiding portion 335 until the predetermined angle crosses the first positioning portion 331, and when the elastic arm 400 is fastened on the fastening interval 333, the first portion 410 abuts against the first positioning portion 331 and the second portion 420 abuts against the second positioning portion 332, so that the detection gear 252 is kept in a separated position relative to the housing 210 and the transmission gear 251.
In another embodiment, the drive gear set 240 is located on a first side of the housing 210, the detection gear set 250 is located on a second side of the housing 210 opposite the first side, and the drive gear 251 is drivingly connected to the stirring member 230 such that the detection gear set 250 does not directly affect the drive process of the drive gear set 240.
Referring to fig. 6, the toner storage and supply device 200 further includes a second roller 260 rotatably disposed inside the supply port 212, the second roller 260 being in contact with the accommodating chamber 211 and directly contacting the toner in the accommodating chamber 211, while an outer surface is in contact with the first roller 220 for adsorbing and supplying the toner onto the second roller 260, and the second roller 260 transferring the toner onto the drum assembly.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and simple substitutions to the technical solution of the present invention by using the methods and technical matters disclosed above without departing from the scope of the technical solution of the present invention, and these all fall into the scope of protection of the technical solution of the present invention.
Claims (9)
1. A toner storage and supply device for use in an image forming apparatus, the toner storage and supply device comprising:
a housing;
a driving gear set that receives a driving force from the image forming apparatus;
detect the gear train, set up in on the shell, include:
a transmission gear receiving a driving force of the driving gear set;
the detection gear comprises a gear body, wherein the gear body is provided with a ring tooth part, an induction area and a positioning area which are staggered along the axial direction of the gear body, the ring tooth part comprises a joint tooth area which can be meshed with the transmission gear and a non-transmission area which can not receive the driving force of the transmission gear along the surrounding closing direction of the ring tooth part, and the positioning area is provided with a first positioning part, a second positioning part and a clamping interval formed by the first positioning part and the second positioning part;
an elastic member mounted on the housing and having an elastic arm elastically abutting toward the positioning area, the elastic arm including a first portion and a second portion having a predetermined angle;
the elastic arm is propped against the positioning area towards a first direction, the meshing position of the transmission gear and the detection gear is located in the first direction of the positioning area, and when the elastic arm is buckled on the clamping interval, the first part is propped against the first positioning part and the second part is propped against the second positioning part;
wherein when the transmission gear drives the detection gear to rotate from an initial position, the sensing area is sensed by the image forming apparatus until the ring gear portion rotates to the non-transmission area and is disengaged from the transmission gear, and the elastic arm is caught on the catching space across the first positioning portion to fix the detection gear at a disengaged position with respect to the housing.
2. The toner storage and supply device according to claim 1, wherein the housing includes a case and an end cap mounted on a side surface of the case, the detection gear set is disposed between the end cap and the case, the end cap has a hollowed-out portion thereon, and a portion of the sensing area is exposed on the hollowed-out portion of the end cap so as to be sensed by the image forming apparatus.
3. The toner storage and supply device according to claim 2, wherein the sensing area includes an initial sensing portion, at least one first sensing portion, and a second sensing portion, which are sequentially disposed in a rotation direction of the detection gear, the second sensing portion being capable of being sensed by the image forming apparatus when the elastic arm is caught on the catching interval.
4. A toner storing and supplying apparatus according to claim 3, wherein a poking groove is provided between the second sensing portion and the initial sensing portion, the hollowed portion has a first side and a second side provided downstream of the first side in a rotation direction of the detection gear, a portion of the sensing region is exposed between the first side and the second side, the engaging tooth region has a start end and a rear end adjoining both ends of the non-transmission region,
when the shifting groove is at the disengaging position, the distance between the shifting groove and the second side edge is larger than or equal to the distance between the opposite part of the ring tooth part and the transmission gear and the starting end at the disengaging position.
5. The toner storage and supply device as claimed in claim 4, wherein when the paddle reaches the first side, the elastic member is disengaged from the chucking space and pushes against an outermost end of the second positioning portion to rotate the detection gear to the initial position.
6. The toner storage and supply device as claimed in claim 4, wherein the hollowed-out portion includes a clearance portion provided outside the detection gear shaft at the first side edge.
7. The toner storage and supply device according to any one of claims 1 to 6, wherein an annular surface provided around the gear body axis is provided on the positioning area, the first positioning portion and the second positioning portion protrude from the annular surface toward away from the axis, a guide portion is provided on the annular surface upstream of the first positioning portion in the detection gear rotation direction, a first distance between a tip of the guide portion and the annular surface axis is smaller than a second distance between a tip of the first positioning portion and the annular surface axis, and the guide portion is inclined in a direction opposite to the detection gear rotation direction.
8. The toner storage and supply device as in any one of claims 1 to 6, wherein the drive gear set is located on a first side of the housing, the detection gear set is located on a second side of the housing opposite the first side, and the drive gear is drivingly connected to the stirring member.
9. An image forming apparatus, comprising:
the main body of the device is provided with a plurality of air channels,
the toner storage supply device according to any one of claims 1 to 8, comprising a first roller for supplying toner;
a photosensitive member including a drum assembly for receiving toner supplied from the first roller;
a detection member for sensing an initial sensing portion and at least one first sensing portion on the sensing region at a first angular position;
the initial sensing part is positioned at the first angle position in the initial position and is sensed by the sensing member, and when the transmission gear drives the sensing gear to rotate from the initial position, the initial sensing part and the at least one first sensing part sequentially pass through the first angle position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410178626.5A CN117724312B (en) | 2024-02-09 | 2024-02-09 | Toner storage and supply device and image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410178626.5A CN117724312B (en) | 2024-02-09 | 2024-02-09 | Toner storage and supply device and image forming apparatus |
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| Publication Number | Publication Date |
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| CN117724312A true CN117724312A (en) | 2024-03-19 |
| CN117724312B CN117724312B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410178626.5A Active CN117724312B (en) | 2024-02-09 | 2024-02-09 | Toner storage and supply device and image forming apparatus |
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|---|---|---|---|---|
| CN101008817A (en) * | 2006-01-23 | 2007-08-01 | 夏普株式会社 | Image forming apparatus |
| US20120027464A1 (en) * | 2010-07-30 | 2012-02-02 | Ricoh Company, Ltd. | Drive transmission device, drive device, and image forming apparatus |
| JP2014063071A (en) * | 2012-09-21 | 2014-04-10 | Brother Ind Ltd | Cartridge, and manufacturing method of cartridge |
| JP2014164173A (en) * | 2013-02-26 | 2014-09-08 | Kyocera Document Solutions Inc | Fixing device and image forming apparatus including the same |
| JP2017067885A (en) * | 2015-09-29 | 2017-04-06 | ブラザー工業株式会社 | Developing cartridge |
| CN209657089U (en) * | 2018-04-27 | 2019-11-19 | 兄弟工业株式会社 | Image forming apparatus |
| CN116940903A (en) * | 2021-03-16 | 2023-10-24 | 佳能株式会社 | Toner cartridge and image forming apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101008817A (en) * | 2006-01-23 | 2007-08-01 | 夏普株式会社 | Image forming apparatus |
| US20120027464A1 (en) * | 2010-07-30 | 2012-02-02 | Ricoh Company, Ltd. | Drive transmission device, drive device, and image forming apparatus |
| JP2014063071A (en) * | 2012-09-21 | 2014-04-10 | Brother Ind Ltd | Cartridge, and manufacturing method of cartridge |
| JP2014164173A (en) * | 2013-02-26 | 2014-09-08 | Kyocera Document Solutions Inc | Fixing device and image forming apparatus including the same |
| JP2017067885A (en) * | 2015-09-29 | 2017-04-06 | ブラザー工業株式会社 | Developing cartridge |
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| CN116940903A (en) * | 2021-03-16 | 2023-10-24 | 佳能株式会社 | Toner cartridge and image forming apparatus |
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| Publication number | Publication date |
|---|---|
| CN117724312B (en) | 2024-04-16 |
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