CN107239030B - Processing box - Google Patents
Processing box Download PDFInfo
- Publication number
- CN107239030B CN107239030B CN201710621056.2A CN201710621056A CN107239030B CN 107239030 B CN107239030 B CN 107239030B CN 201710621056 A CN201710621056 A CN 201710621056A CN 107239030 B CN107239030 B CN 107239030B
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- China
- Prior art keywords
- waste
- process cartridge
- power receiving
- hopper
- powder
- Prior art date
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Links
- 238000012545 processing Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 140
- 239000002699 waste material Substances 0.000 claims abstract description 109
- 238000000034 method Methods 0.000 claims description 92
- 230000008569 process Effects 0.000 claims description 91
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 230000009471 action Effects 0.000 claims description 13
- 125000006850 spacer group Chemical group 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 description 16
- 238000007789 sealing Methods 0.000 description 13
- 238000002955 isolation Methods 0.000 description 10
- 206010070834 Sensitisation Diseases 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000008313 sensitization Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention relates to a processing box, which comprises a powder bin part and a waste powder bin part which are connected with each other, wherein the waste powder bin part comprises a waste powder bin frame and a photosensitive piece rotatably arranged in the waste powder bin frame, the photosensitive piece comprises a photosensitive cylinder, a drum shaft pin, a drum disc and a second power receiving device which are respectively positioned at two ends of the photosensitive cylinder, and the photosensitive piece is rotatably fixed on the waste powder bin frame through the drum shaft pin and the second power receiving device.
Description
Technical Field
The present invention relates to the field of electrophotographic image forming, and more particularly, to a process cartridge detachably mountable to an electrophotographic image forming apparatus.
Background
The process cartridge is a component necessary for image formation of an electrophotographic image forming apparatus (hereinafter referred to as "apparatus"), and generally, the process cartridge is separately provided and detachably mounted in the apparatus.
In general, a process cartridge includes a powder hopper portion containing a developer necessary for image formation of the process cartridge and a waste powder hopper portion containing a photosensitive member for carrying an electrostatic latent image in the process of image formation of the process cartridge. In the existing waste powder bin structure, the structure for fixing the photosensitive member is not provided, so that in order to keep the photosensitive member fixed, the processing box further comprises baffle plates respectively positioned at two ends of the processing box, and in general, the processing box comprises four parts, namely a powder bin part, a waste powder bin part and two baffle plates; when the processing box is assembled, the photosensitive part is required to be placed at a specific position of the waste powder bin, then the powder bin is close to the waste powder bin, and the photosensitive part is fixed by the baffle plate and simultaneously connected with the powder bin part and the waste powder bin part, so that the assembly of the processing box is completed.
As described above, before the process cartridge is assembled, the photosensitive member is not fixed, and in the process of the process cartridge being assembled, the photosensitive member is extremely easily moved and even slides down from the waste bin, thereby damaging the photosensitive coating on the surface thereof, and affecting the developing quality of the process cartridge.
Disclosure of Invention
In view of this, the present invention provides a process cartridge in which the photosensitive member is fixed to the waste bin before the process cartridge is assembled, effectively preventing the photosensitive member from moving.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a processing box, includes interconnect's powder storehouse part and waste powder storehouse part, waste powder storehouse part includes waste powder storehouse frame and rotationally installs the sensitization piece in waste powder storehouse frame, sensitization piece includes sensitization drum, drum pivot and drum dish and the second power receiving arrangement that are located sensitization drum both ends respectively, sensitization piece is rotationally fixed on waste powder storehouse frame through drum pivot and second power receiving arrangement.
Further, the waste powder bin frame comprises a waste powder bin frame body, and conductive end protrusions and driving end protrusions which are respectively positioned at two longitudinal ends of the waste powder bin frame body, and the second power receiving device is provided with a step for abutting against the inner side surface of the driving end protrusion; the conductive end protrusion is provided with a drum shaft pin hole, the driving end protrusion is provided with a driving hole, the drum shaft pin penetrates through the drum shaft pin hole, and the second power receiving device penetrates through the driving hole; in order to prevent the drum shaft pin hole from cracking, a plurality of ribs are provided along the circumferential direction of the drum shaft pin hole, the ribs extending radially inward from the inner wall of the drum shaft pin hole.
Further, the second power receiving device comprises a combination body, a support body and a power receiving body, wherein the support body is fixedly connected with the combination body and the power receiving body respectively, the combination body is fixedly connected with the photosensitive cylinder, the support body comprises a first extension part and a second extension part which are mutually connected, the first extension part is fixedly connected with the combination body, the second extension part is fixedly connected with the power receiving body, and the diameter of the first extension part is larger than that of the second extension part.
In the embodiment of the invention, in order to ensure the connection of the powder bin part and the waste powder bin part, the processing box further comprises a connecting pin, and the powder bin part and the waste powder bin part are rotatably connected through the connecting pin.
One of the powder bin part and the waste powder bin part is provided with a joint part, and the other is provided with a joint part; specifically, the powder bin part comprises a powder bin frame and tail end brackets respectively positioned at two longitudinal ends of the powder bin frame, a powder bin combining part protrudes from the tail end brackets, and a waste powder bin combining part combined with the powder bin combining part is also arranged on the waste powder bin part; the waste bin coupling part includes first and second protruding parts protruding from the waste bin frame body, and a receiving part between the first and second protruding parts.
Further, the accommodating part is a through hole groove and is used for accommodating the powder bin combining part; through holes are formed in the powder bin combining part, the first protruding part and the second protruding part, and the connecting pin sequentially penetrates through the first protruding part, the powder bin combining part and the second protruding part.
In order to facilitate the taking out of the connecting pin, an avoidance part is further arranged on the circumference of the through hole formed in the first protruding part.
The processing box of the invention cancels the baffle plate, changes the fixation of the photosensitive element by the baffle plate to the fixation of the step on the supporting body and the drum shaft pin, and before the powder bin part and the waste powder bin part are assembled, the photosensitive element can be fixed on the waste powder bin frame, thereby effectively preventing the defect that the developing quality is affected due to the sliding of the photosensitive element in the assembling process of the processing box.
Drawings
Fig. 1 is a schematic view of the entire structure of the process cartridge according to the present invention as seen from the drive end.
Fig. 2 is a schematic view of the entire structure of the process cartridge according to the present invention as seen from the conductive end.
Fig. 3 is a cross-sectional view of the process cartridge taken along the lateral direction thereof.
Fig. 4A is a schematic diagram showing the combination of the powder hopper portion and the waste powder hopper portion in the process cartridge according to the present invention.
Fig. 4B is a schematic view showing the combination of the powder hopper portion and the waste powder hopper portion in the process cartridge according to the present invention from another angle.
Fig. 5 is a partially exploded view of a waste bin portion in the process cartridge according to the present invention.
Fig. 6 is a schematic view of the overall structure of the second power receiving device in the process cartridge according to the present invention.
Fig. 7 is a side view of the second power receiving device in the process cartridge according to the present invention.
Fig. 8 is a schematic view showing an installation state of the isolation device in the process cartridge according to the present invention.
Fig. 9 is a schematic view of the overall structure of the isolation device according to the present invention.
Fig. 10 is a side view of an isolation device according to the present invention.
Fig. 11 is another angular side view of an isolation device according to the present invention.
Fig. 12 is a schematic view of a state after the isolation device is mounted in the process cartridge according to the present invention.
Fig. 13 is an enlarged schematic view of a portion R in fig. 12.
Detailed Description
Embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[ Integrated Structure of Process Cartridge and working Process thereof ]
FIG. 1 is a schematic view of the overall structure of a process cartridge according to the present invention as seen from a drive end; fig. 2 is a schematic view of the entire structure of the process cartridge according to the present invention as seen from the conductive end; fig. 3 is a cross-sectional view of the process cartridge taken along a cross-sectional line of the process cartridge.
As shown, the process cartridge C, which includes the hopper portion 100 and the waste hopper portion 200 connected to each other with a laser port Q formed therebetween for allowing laser light of the apparatus to pass therethrough, has a conductive end E and a driving end F. For convenience of description, a connection line between the conductive end E and the driving end F of the process cartridge C is defined as a longitudinal direction X, and a direction from the conductive end E to the driving end F is defined as a +x direction; the connecting line of the waste powder bin part 200 and the powder bin part 100 is transverse Y perpendicular to the longitudinal direction X, and the direction of the waste powder bin part 200 pointing to the powder bin part 100 is +Y direction; and meanwhile, the direction vertical to the longitudinal direction X and the transverse direction Y is the vertical direction Z, and the direction from the side of the non-laser port to the side of the laser port Q is the +Z direction.
As shown in fig. 1 and 2, in the embodiment of the present invention, the process cartridge further includes a connection pin d through which the hopper portion 100 and the waste hopper portion 200 are rotatably connected, the driving end F being provided with a first power receiving device F1 for receiving driving force from the outside for the rotary member in the hopper portion 100 and a second power receiving device F2 for receiving driving force from the outside for the rotary member in the waste hopper 200, respectively.
As shown in fig. 3, the powder hopper part 100 includes a powder hopper frame 10, a sealing member 11 mounted on the powder hopper frame, a powder feeding member 12 and a developing member 13 rotatably mounted in the powder hopper frame, and an adjusting member 14 abutting against the developing member, the powder feeding member 12 and the developing member 13 being rotary members in the powder hopper part 100, both being disposed in a longitudinal direction of the process cartridge C and in close contact, the powder feeding member 12 being configured to supply developer to the developing member 13 in operation, the adjusting member 14 being configured to adjust an amount of developer on a surface of the developing member 13; the powder bin frame 10 comprises a developer accommodating cavity 101, a powder outlet 102 positioned at the top of the developer accommodating cavity and a powder filling opening 103 positioned on the powder bin frame, wherein the powder outlet 102 is arranged along the longitudinal direction of the processing box C, and a sealing piece 11 is used for sealing the powder outlet 102 along the longitudinal direction; to prevent leakage of the developer in the developer accommodating chamber 101, as shown in fig. 2, the powder hopper portion 100 further includes a first sealing cover T1 for sealing the powder filling port 103.
The waste bin part 200 includes a waste bin frame 20, a photosensitive member 21 and a charging member 22 rotatably installed in the waste bin frame, a charging member bracket 23 movably installed in the waste bin frame, and a cleaning member 24 fixedly installed in the waste bin frame; the photosensitive member 21 and the charging member 22 are rotating members in the waste bin portion 200, the photosensitive member 21 is disposed opposite to the developing member 13, and both the photosensitive member 21 and the charging member 22 are disposed along the longitudinal direction of the process cartridge C, in close contact with each other; the charging member 22 includes a charging member shaft 220 and an elastic layer 221 covering the outer surface of the charging member shaft, preferably, the charging member support 23 is supported by the elastic member to be movable, the charging member shaft 220 is supported by the charging member support 23 and contacts the surface of the photosensitive member 21 for charging the surface of the photosensitive member, and the cleaning member 24 is used for removing the developer remaining on the surface of the photosensitive member after one developing cycle is completed; the waste bin frame 20 includes a waste discharge port 207 provided therein for discharging waste therein; to prevent leakage of the waste powder, as shown in fig. 2, the waste powder bin part 200 further includes a second sealing cover T2 for sealing the powder discharge port 207.
A simple description of the process cartridge operation.
When the process cartridge C starts to operate, the second power receiving device F2 receives a driving force from the apparatus and transmits the driving force to the photosensitive member 21 and the charging member 22, the rotating charging member 22 charges the surface of the photosensitive member 21 uniformly, and at the same time, the laser beam carrying the imaging information irradiates the surface of the photosensitive member 21 from the laser port Q and forms an electrostatic latent image; the first power receiving device F1 also receives a driving force from the apparatus and transmits it to the developing member 13 and the toner feeding member 12, the toner feeding member 12 supplies the developer to the developing member 13, the regulating member 14 regulates the amount of the developer on the surface of the developing member 13, and therefore, the developer on the surface of the developing member 13 is frictionally charged with the toner feeding member 12 and the regulating member 14, when these charged developers reach the electrostatic latent image region of the photosensitive member 21 with the rotation of the developing member 13, the electrostatic latent image is developed, and finally, the latent image located on the developed image is transferred from the photosensitive member 21 to the image forming medium, and one developing cycle of the process cartridge C is completed.
[ baffle-less Structure of Process Cartridge ]
FIG. 4A is a schematic view showing the combination of a powder hopper portion and a waste powder hopper portion in a process cartridge according to the present invention; FIG. 4B is a schematic view showing the combination of the powder hopper portion and the waste powder hopper portion in the process cartridge according to the present invention from another angle; fig. 5 is a partially exploded view of a waste bin portion in the process cartridge according to the present invention.
Referring to the coordinates of the powder bin portion 100 in the drawing, as shown in fig. 4A, the powder bin portion 100 further includes end brackets 104 respectively located at two longitudinal ends of the powder bin frame 10, the powder feeding member 12, the developing member 13 and the regulating member 14 are all disposed along the longitudinal direction X of the powder bin portion 100, the end brackets 104 are fixedly connected to the powder bin frame 10 and are used for supporting the ends of the powder feeding member 12 and the developing member 13, and the first power receiving device F1 is located at one longitudinal end of the powder bin portion 100. In order to ensure that the driving force received by the first power receiving device F1 can be transmitted to the developing member 13 and the powder feeding member 12, the powder bin portion 100 further includes a power transmitting member F11 coupled to the first power receiving device F1, a developing member gear 131 positioned at one longitudinal end of the developing member 13, and a powder feeding member gear 121 positioned at one longitudinal end of the powder feeding member 12, preferably, the power transmitting member F11 is a duplex gear, and the duplex gear is engaged with the developing member gear 131 and the powder feeding member gear 121, respectively, and the driving force is transmitted to the developing member 13 and the powder feeding member 12 through the duplex gear, the developing member gear 131 and the powder feeding member gear 121, respectively, after the first power receiving device F1 receives the driving force.
The process cartridge C according to the present invention has no barrier, and thus, the powder hopper portion 100 and the waste powder hopper portion 200 of the process cartridge C are not coupled by the barriers at both ends, and as described above, are rotatably coupled by the coupling pin d.
Specifically, as further shown in fig. 4A and 4B, the powder bin portion 100 further includes a powder bin coupling portion 1041 protruding from the end bracket 104 in the-Y direction, and correspondingly, the waste powder bin portion 200 includes a waste powder bin coupling portion 201 provided on the waste powder bin frame 20, and the powder bin coupling portion 1041 is coupled with the waste powder bin coupling portion 201.
As shown in fig. 5, the waste bin frame 20 includes a waste bin frame body 20a, conductive end protrusions 202 and driving end protrusions 203 respectively located at both longitudinal ends of the waste bin frame body. The rotation axis of the photosensitive member 21 is L1, and is rotatably fixed to the waste bin frame 20 by the drum shaft pin 211 and the second power receiving device F2, specifically, the conductive end protrusion 202 is provided with a drum shaft pin hole 2021, the driving end protrusion 203 is provided with a driving hole 2031, and the drum shaft pin 211 passes through the drum shaft pin hole 2021, and the second power receiving device F2 passes through the driving hole 2031. In the embodiment of the present invention, in order to prevent the drum pin hole 2021 from cracking, as shown in fig. 5, a plurality of ribs 2022 are provided along the circumferential direction of the drum pin hole 2021, and the ribs 2022 extend radially inward from the inner wall of the drum pin hole 2021; meanwhile, to prevent the photosensitive member 21 from being interlocked in the longitudinal direction, the second power receiving device F2 is provided with a step 2131 (to be described later) for abutting against the inner side face 2032 of the drive end protrusion.
As described above, the waste bin frame 20 is provided with the waste bin coupling part 201, as shown in fig. 5, the waste bin coupling part 201 includes the first and second protruding parts 201a and 201b protruding from the waste bin frame body 20a, and the receiving part 201c located between the first and second protruding parts 201a and 201b, the receiving part 201c is a through-hole groove for receiving the bin coupling part 1041 and providing a movement space for the bin coupling part 1041 such that the bin coupling part 1041 can move in the YZ plane, but the movement of the bin coupling part 1041 in the longitudinal X direction is limited by the first and second protruding parts 201a and 201b, and thus, the relative movement of the bin frame 10 and the waste bin frame 20 in the longitudinal X direction is inhibited.
After the powder bin combining part 1041 enters the accommodating part 201c, the powder bin combining part 1041 is combined with the waste powder bin combining part 201 by utilizing the connecting pin d, and conventionally, through holes are formed in the powder bin combining part 1041, through holes are formed in the first protruding part 201a and the second protruding part 201b, and the connecting pin d sequentially penetrates through the first protruding part 201a, the powder bin combining part 1041 and the second protruding part 201b. In view of facilitating the removal of the connection pin d, as shown in fig. 5, the through hole formed in the first protruding portion 201a is further provided with at least two avoidance portions 201a1 on the circumference thereof, preferably, the avoidance portions 201a1 are disposed radially opposite to each other along the circumference of the through hole formed in the first protruding portion 201a, and the avoidance portions 201a1 are formed recessed from the longitudinal end of the first protruding portion 201a away from the second protruding portion 201b toward the second protruding portion 201b along the longitudinal direction X.
As will be readily appreciated by those skilled in the art, the positions of the bin and waste bin combinations 1041, 201 may also be interchanged, one of the bin and waste bin combinations 1041, 201 being referred to as a combination and the other being referred to as a combined, i.e. the bin combination 1041 is provided on the waste bin portion 200 and the waste bin combination 201 is provided on the bin portion 100 for convenience of description; that is, one of the powder bin part 100 and the waste bin part 200 is provided with a coupling portion, and the other of the powder bin part 100 and the waste bin part 200 is provided with a coupled portion coupled with the coupling portion.
Since the process cartridge C of the present invention eliminates the baffle, when the powder hopper portion 100 and the waste powder portion 200 are combined by the connection pin d, the partial structure of the powder hopper frame 10 is exposed, and more exposure is not desirable in view of the aesthetic appearance and the overall stability of the process cartridge C, and thus, the waste powder hopper frame 20 further includes the conductive end guard 205 and the driving end guard 206 at both longitudinal ends thereof, and specifically, the conductive end guard 205 and the driving end guard 206 are respectively located at both longitudinal ends of the waste powder hopper frame body 20a and extend in the +y direction from the conductive end protrusions 202 and the driving end protrusions 203, respectively.
Referring to fig. 1, 2, 4A and 4B, after the process cartridge C is assembled, the conductive end guard plate 205 and the driving end guard plate 206 are located outside the powder bin frame 10, so as to facilitate the installation and removal of the connection pins d, the first protruding portions 201a located at two longitudinal ends of the waste powder bin frame body 20a are integrally formed with the conductive end guard plate 205 and the driving end guard plate 206, respectively, and the through holes formed in the first protruding portions 201a penetrate through the conductive end guard plate 205 and the driving end guard plate 206.
Second power receiving device
Fig. 6 is a schematic view of the overall structure of a second power receiving device in the process cartridge according to the present invention; fig. 7 is a side view of the second power receiving device in the process cartridge according to the present invention.
As described above, the second power receiving device F2 is configured to receive the driving force from the apparatus and transmit the driving force to the photosensitive member 21 and the charging member 22, and in the embodiment of the present invention, the second power receiving device F2 directly transmits the received driving force to the photosensitive member 21 as a part of the photosensitive member 21, and since the charging member 22 and the photosensitive member 21 are in close contact, when the photosensitive member 21 starts to rotate, the charging member 22 will also start to rotate under the friction force of the two.
As shown in fig. 5, the photosensitive member 21 includes a photosensitive drum (rotating member main body) 210, a drum shaft pin 211, and a drum 216 and a second power receiving device F2 respectively located at two ends of the photosensitive drum, wherein the second power receiving device F2 is fixedly connected with the photosensitive drum 210, so as to ensure that the driving force received by the second power receiving device F2 can be directly transmitted to the photosensitive drum, and further drive the photosensitive drum to rotate; the drum 216 is also fixedly connected to the photosensitive drum 210, and when the photosensitive member 21 is mounted to the waste bin frame 20, the drum shaft pins 211 also pass through the drum 216, thereby fixing the conductive ends E of the photosensitive member 210.
It should be noted that, since the developing member, the powder feeding member and the charging member may be referred to as a rotating member, the second power receiving device F2 may also be mounted at the ends of the charging member, the developing member and the powder feeding member, where the charging member, the developing member and the powder feeding member each include a main body and the second power receiving device F2 is fixedly connected to the main body, and in the embodiment of the present invention, the photosensitive member is taken as an example, and the second power receiving device F2 is mounted at the end of the photosensitive member and is fixedly connected to the main body of the photosensitive member.
As shown in fig. 6, the second power receiving device F2 has a rotation axis L2, and includes a combining body 212, a supporting body 213 and a power receiving body 214, wherein the supporting body 213 is fixedly connected with the combining body 212 and the power receiving body 214, respectively, and preferably, the second power receiving device F2 is integrally formed; the combined body 212 is fixedly connected with the photosensitive drum 210, and the power receiving body 214 is used for receiving driving force from equipment.
The support 213 is a cylinder as a whole, and photosensitive members used in some types of cartridges on the market only differ in the size of the support 213, so that manufacturers need to prepare the second power receiving devices F2 for these types of cartridges, respectively, and from the aspect of reducing the stock and the management cost, the present invention provides a second power receiving device F2 that can be commonly used, specifically as follows:
as shown in fig. 6, the supporting body 213 includes a first extending portion 213a and a second extending portion 213b connected to each other, the first extending portion 213a is fixedly connected to the combined body 212, the second extending portion 213b is fixedly connected to the power receiving body 214, the diameters of the first extending portion 213a and the second extending portion 213b are different, preferably, the diameter of the first extending portion 213a is larger than the diameter of the second extending portion 213b, and as shown in fig. 7, the second power receiving device F2 is viewed from the power receiving body 214 to the combined body 212, and the first extending portion 213a and the second extending portion 213b form a step 2131; as shown in fig. 5, after the photosensitive member 21 is mounted to the waste bin frame 20, the step 2131 abuts against the inner side surface 2032 of the driving end protrusion, and the driving end F of the photosensitive member 21 is also fixed, so that the second power receiving device F2 is made universal by adjusting the length of the first extension portion 213a, thereby reducing the inventory and management costs of the manufacturer. As another implementation of the embodiment of the present invention, the step 2131 is not necessarily formed on the entire circumferential surface along the circumference of the support body 213, for example, the step 2131 is formed only on a part of the circumference of the support body 213, and in this case, the step 2131 may be formed as a protrusion protruding from the first extension 213a toward the power receiving body 214 along the rotation axis L2 of the second power transmission device F2, and the protrusion may be one or a plurality, and preferably, the protrusion is a plurality uniformly arranged along the circumferential direction of the support body 213.
As a modification of the embodiment of the present invention, in order to make the second power transmission device F2 more versatile, the support body 213 is provided movably, that is, the support body 213 is axially retractable along the rotation axis L2 thereof; or at least one of the first extension 213a and the second extension 213b may be axially retractable along the rotation axis L2 of the support 213.
To accommodate the power supply setting of the apparatus, the second power receiving device F2 is further provided with a conductive hole 215 for accommodating a conductive sheet (not shown), the conductive hole 215 extending along the rotation axis L2 as shown in fig. 6 and 7, the second power receiving device F2 further comprising at least one holding table 2150 provided along the circumferential surface of the conductive hole 215 for holding the conductive sheet in a predetermined position, the holding table 2150 protruding radially inward from the circumferential surface of the conductive hole 215; preferably, the holding table 2150 is two diametrically opposed.
The structure of the power receiving body 214 is described below with reference to fig. 6 and 7.
The power receiving body 214 includes a base 214a and a power receiving portion 214b that are connected to each other, the base 214a is fixedly connected to the supporting body 213, and as shown in the drawing, the base 214a is a cylindrical body, preferably a cylinder, formed to extend from the supporting body 213 in a direction away from the supporting body 213 along the rotation axis L2 of the second power receiving device F2; the power receiving portion 214b protrudes from the outer peripheral surface of the base portion 214a, and preferably, the power receiving portion 214b and the base portion 214a are integrally formed, and the power receiving portion 214b is formed as three protrusions uniformly provided along the outer peripheral surface of the base portion 214a, and the power receiving portion 214b is inclined in the downstream direction along the rotation direction r of the second power receiving device F2.
As shown in the drawing, the power receiving portion 214b has a force receiving surface 214b1, a transition surface 241b2 and a side surface 214b3, the force receiving surface 214b1 and the side surface 214b3 are fixedly connected with the base 214a, the transition surface 214b2 is located between the force receiving surface 214b1 and the side surface 214b3, and the transition surface 214b2 is a cambered surface. When the power receiving portion 214b is combined with the power output portion in the apparatus, the force receiving surface 214b1 is combined with the power output portion and receives the driving force.
As described above, since the power receiving portion 214b is inclined downstream in the rotation direction r, and the side surface 214b3 intersects the surface of the base portion 214a, and the stress surface 214b1 and the side surface 214b3 are each formed by extending from the intersection line of the power receiving portion 214b and the base portion 214a toward the transition surface 214b2, as shown in fig. 7, the base portion 214a is preferably a cylinder, and therefore the downstream inclination angle α of the power receiving portion 214b is the angle between the tangent line of any point on the intersection line of the side surface 214b3 and the surface of the base portion 214a and the side surface 214b 3. In the embodiment of the present invention, the inclination angle α is an acute angle, and thus, the area of the stress surface 214b1 is larger than the area of the side surface 214b 3; if the inclination angle α is a right angle or an obtuse angle, that is, the power receiving portion 214b is inclined vertically or in the upstream direction, the area of the force receiving surface 214b1 will be equal to or smaller than the area of the side surface 214b3, and the larger the area of the force receiving surface 214b1, the smaller the wear on itself and the wear on the power output portion will be on the premise that the power output portion applies the same driving force to the force receiving surface 214b1, and thus, in the embodiment of the present invention, the design in which the power receiving portion 214b is inclined in the downstream direction in the rotation direction r is adopted.
[ anti-contamination Structure of photosensitive Member and charging Member ]
Fig. 8 is a schematic view showing an installation state of a spacer in the process cartridge according to the present invention; FIG. 9 is a schematic view of the overall structure of the isolation device according to the present invention; FIG. 10 is a side view of an isolation device according to the present invention; FIG. 11 is another angular side view of an isolation device according to the present invention; fig. 12 is a schematic view of a state after the isolation device is mounted in the process cartridge according to the present invention; fig. 13 is an enlarged schematic view of a portion R in fig. 12.
As shown in fig. 5 and 8, the process cartridge C further includes an insertion port 204 provided on the waste bin frame 20, the insertion port 204 being located upstream of the first projection 201a in the lateral direction Y of the process cartridge C, i.e., the first projection 201a being located in the +y direction of the insertion port 204.
As described above, the charging member 22 is in close contact with the photosensitive member 21, however, since the process cartridge C is completely assembled until the end user starts to use, it is generally necessary to undergo a long-term process of storage, transportation, and restocking, in which, if the charging member 22 is kept in close contact with the photosensitive member 21 at all times, deformation of the surface of the elastic layer 221 of the charging member 22 will be unavoidable; also, in a severe environment, the substance on the surface of the elastic layer 221 will adhere to the surface of the photosensitive member 21, thereby contaminating the photosensitive member 21 and affecting the image quality, and therefore, it is not desirable that the charging member 22 be in contact with the photosensitive member 21 before the process cartridge C is completely assembled to the end user for use.
The process cartridge C according to the present invention further includes a pair of spacers 30, as shown in fig. 8, and after the process cartridge C is assembled, the spacers 30 are inserted into the waste bin portion through the insertion opening 204, thereby separating the photosensitive member 21 and the charging member 22 by a certain interval, and when the end user needs to use the process cartridge C, the contact state of the photosensitive member 21 and the charging member 22 can be restored by only pulling out the spacers 30.
As shown in fig. 9, the isolation device 30 includes an acting portion 31, a force receiving portion 32, and a connecting portion 33, where the acting portion 31 and the force receiving portion 32 are flexibly connected by the connecting portion 33, specifically, the connecting portion 33 is a deformable portion, and the force receiving portion is deformable relative to the acting portion 31.
The action part 31 includes an action part body 310, and a separation pin 311 and a blocking part 312 protruding from the action part body 310, as shown in fig. 10, the separation pin 311 and the blocking part 312 both protrude from the action part body 310 in the same direction, and when the separation device 30 is inserted into the insertion port 204, the separation pin 311 enters between the photosensitive member 21 and the charging member 22 to form a gap g (as shown in fig. 12) between the photosensitive member 21 and the charging member 22; meanwhile, the blocking portion 312 is opposite to the charging member 22, preventing the charging member 22 from falling off from the process cartridge C when the process cartridge C falls.
Generally, the isolating pin 311 and the blocking portion 312 are both cylindrical, so that the isolating pin 311 enters between the photosensitive member 21 and the charging member 22, as shown in fig. 9 and 10, the isolating pin 311 includes a rod portion 311a and a taper portion 311b which are connected to each other, and the rod portion 311a is connected to the acting portion body 310, and the taper portion 311b is provided, so that the isolating pin 311 more easily enters between the photosensitive member 21 and the charging member 22; further, since the photosensitive member 21 and the charging member 22 are both cylindrical, in order to ensure that the isolating pin 311 stably supports the photosensitive member 21 and the charging member 22, the rod portion 311a is further provided with at least one plane, preferably, the rod portion 311a is relatively provided with a first plane 311a1 and a second plane 311a2, and when the isolating pin 311 enters between the photosensitive member 21 and the charging member 22, the first plane 311a1 and the second plane 311a2 are respectively opposite to the photosensitive member 21 and the charging member 22.
The force receiving portion 32 includes a tab 320 and a holding portion 321 protruding from the tab 320, preferably, the holding portion 321 is in a barb shape, as shown in fig. 9 and 10, the protruding direction of the holding portion 321 is the same as the protruding direction of the spacer pin 311 and the blocking portion 312, and when the spacer 30 is inserted into the process cartridge C, the holding portion 321 is combined with the corresponding portion in the cartridge frame 10 or the waste cartridge frame 20 to prevent the spacer from falling off from the process cartridge C. In the embodiment of the present invention, the retaining portion 321 is disposed on the force receiving portion 32, and when the separator 30 needs to be taken out from the process cartridge C, the end user pulls the pull ring 320 in the direction P in fig. 10, and at the same time, the combination of the retaining portion 321 and the powder bin frame 20 or the waste powder bin frame 20 is released, so that the separator 30 can be quickly taken out; as another embodiment, the holding portion 321 may be provided on the acting portion 31, or the holding portion may be provided on both the acting portion 31 and the force receiving portion 32, that is, the holding portion 321 may be provided on at least one of the acting portion 31 and the force receiving portion 32.
Further, to ensure easier removal of the separator 30, as shown in fig. 10, the tab 32 is not on the same plane as the action part body 310 as viewed in a direction perpendicular to the protruding direction of the separator pin 311, preferably, the tab 320 is located downstream of the action part body 310 in the pulling direction P of the tab 320, so that when the tab 320 receives a force in the pulling direction P, the force can be more quickly transmitted to the action part 31.
As shown in fig. 3, in the vertical direction Z of the process cartridge C, the center of the photosensitive member 21 and the center of the charging member 22 are not collinear, and in the vertical direction Z, a deviation h is provided between the straight line in which the center of the photosensitive member 21 is located and the straight line in which the center of the charging member 22 is located, and in order to ensure that the blocking portion 312 performs a superior blocking function, as shown in fig. 11, an angle β is formed between a center line L3 of the center of the blocking portion 312 and the center line L4 of the connecting portion 33 as viewed in the opposite direction to the protruding direction of the blocking portion 311, and in the horizontal direction, the center of the blocking portion 312 and the center line L3 are also provided with a deviation h, that is, the center line L3 is not parallel to the center line L4.
As shown in fig. 12 and 13, when the spacer pin 311 enters between the photosensitive member 21 and the charging member 22 and separates the photosensitive member 21 and the charging member 22 by the gap g, at least a portion of the charging member 22 and the charging member holder 23 is opposed to the blocking portion 312, and thus, the blocking portion 312 can better prevent the charging member 22 from coming out of the process cartridge C.
[ method of assembling Process Cartridge ]
As described above, the photosensitive member 22, which originally needs to be fixed by the shutter, is rotatably fixed to the waste bin frame 20 by the drum shaft pin 211 and the step 2131 provided on the support body 213 of the second power receiving device F2 in the embodiment of the present invention without the shutter at both longitudinal ends of the process cartridge C, and thus, the possibility of the photosensitive member 22 slipping off from the waste bin portion 20 is eliminated.
The process of assembling the process cartridge C is as follows:
a. the components of the powder bin part 100 and the waste powder bin part 200 are assembled respectively;
b. inserting the bin coupling portion 1041 in the bin portion 100 into the receiving portion 201c of the waste bin coupling portion 201;
c. the connection pin d is sequentially inserted into the through hole formed in the first protruding portion 201a, the through hole formed in the powder bin coupling portion 1041, and the through hole formed in the second protruding portion 201b.
Wherein the assembling process of the waste bin portion 200 in the step a includes passing the second power receiving device F2 through the driving hole 2031 such that the step 2131 abuts against the inner side surface 2032 of the driving end protrusion, and passing the drum shaft pin 211 through the drum shaft pin hole 2021 and the drum plate 216, thereby rotatably fixing the photosensitive member 21 in the waste bin frame 20.
The step c is followed by a step of installing the isolating means 30.
[ other description ]
As described above, the powder bin frame 10 includes the powder filling port 103 formed therein, the waste powder bin frame 20 includes the powder discharge port 207 provided therein, and the powder filling port 103 and the powder discharge port 207 correspond to the first sealing cover T1 and the second sealing cover T2, respectively. After the developer in the process cartridge C is consumed, the end user can open the first sealing cap T1 and the second sealing cap T2, discharge the waste powder accumulated in the waste powder bin portion 200 from the powder discharge port 207, fill new developer into the waste powder bin portion from the powder filling port 103, and cover the first sealing cap T1 and the second sealing cap T2, thereby enabling the process cartridge C to be regenerated, and saving a lot of office costs for the end user.
In summary, the process cartridge C of the present invention eliminates the baffle plate, changes the fixing of the photosensitive member 21 from the baffle plate to the step 2131 on the supporting body 213 and the drum shaft pin 211, and fixes the photosensitive member 21 on the waste powder bin frame 20 before assembling the powder bin portion 100 and the waste powder bin portion 200, thereby effectively preventing the defect that the developing quality is affected due to the sliding of the photosensitive member 21 during the assembling process of the process cartridge C.
In order to prevent the photosensitive member 21 and the charging member 22 from being contaminated due to long-time contact of the photosensitive member 21 and the charging member 22 before use and the problem that the charging member 22 is dropped from the process cartridge C when the process cartridge C is dropped, the present invention further provides a novel spacer 30, in which the spacer 30 is provided not only with a spacer pin 311 for separating the photosensitive member 21 and the charging member 22 by a gap g, but also with a blocking portion 312 for blocking the dropping of the charging member 22 from the process cartridge C, the blocking portion 312 being capable of effectively blocking the movement of the charging member 22 in the longitudinal direction of the process cartridge C during the test or the transportation, thereby preventing the dropping of the charging member 22 from the process cartridge C.
Claims (10)
1. A process cartridge comprising a hopper portion and a waste hopper portion connected to each other, the waste hopper portion comprising a waste hopper frame, and a photosensitive member and a charging member rotatably mounted in the waste hopper frame, the photosensitive member comprising a photosensitive cylinder, a drum shaft pin, and a drum and a second power receiving device respectively located at both ends of the photosensitive cylinder, characterized in that the photosensitive member is rotatably fixed to the waste hopper frame by the drum shaft pin and the second power receiving device;
the processing box further comprises a pair of isolating devices for isolating the photosensitive piece and the charging piece, the isolating devices comprise an action part, a stress part and a connecting part, the connecting part is a deformable part, the action part and the stress part are flexibly connected through the connecting part, and the stress part is deformable relative to the action part;
the action portion includes action portion body, and along same direction from the outstanding spacer pin of action portion body and barrier portion, when isolating device is inserted behind the inserted hole of setting on the useless powder storehouse frame, the spacer pin gets into between photosensitive member and the charging member to form clearance g between photosensitive member and the charging member, barrier portion is relative with the charging member.
2. The process cartridge according to claim 1, wherein the waste bin frame comprises a waste bin frame body, conductive end protrusions and driving end protrusions respectively located at both longitudinal ends of the waste bin frame body, and the second power receiving means is provided with a step for abutting against an inner side surface of the driving end protrusions.
3. A process cartridge according to claim 2, wherein said conductive end projection is provided with a drum shaft pin hole, and said driving end projection is provided with a driving hole, the drum shaft pin passes through the drum shaft pin hole, the second power receiving device passes through the driving hole, and a plurality of ribs are provided along a circumferential direction of the drum shaft pin hole, said ribs extending radially inward from an inner wall of the drum shaft pin hole.
4. A process cartridge according to claim 2, wherein said second power receiving means comprises a coupling body, a supporting body and a power receiving body, said supporting body is fixedly connected with the coupling body and the power receiving body, respectively, said coupling body is fixedly connected with the photosensitive drum, wherein said supporting body comprises a first extension portion and a second extension portion which are connected with each other, said first extension portion is fixedly connected with the coupling body, said second extension portion is fixedly connected with the power receiving body, and the diameter of said first extension portion is larger than the diameter of said second extension portion.
5. A process cartridge according to any one of claims 2-4, further comprising a connecting pin, wherein the powder hopper portion and the waste powder hopper portion are rotatably connected by the connecting pin.
6. A process cartridge according to claim 5, wherein one of said hopper portion and said waste hopper portion is provided with a joint, and the other is provided with a joint.
7. A process cartridge according to claim 6, wherein said hopper portion comprises a hopper frame and end brackets provided at both longitudinal ends of the hopper frame, respectively, and hopper engaging portions are protruded from the end brackets, and said waste hopper portion is further provided with waste hopper engaging portions engaged with the hopper engaging portions.
8. The process cartridge of claim 7, wherein the waste bin coupling portion includes first and second protruding portions protruding from the waste bin frame body, and a receiving portion located between the first and second protruding portions.
9. A process cartridge according to claim 8, wherein said receiving portion is a through-hole groove for receiving the cartridge engaging portion.
10. The process cartridge according to claim 9, wherein the powder cartridge engaging portion, the first projecting portion and the second projecting portion are each provided with a through hole, the connecting pin sequentially passes through the first projecting portion, the powder cartridge engaging portion and the second projecting portion, and the circumference of the through hole provided in the first projecting portion is further provided with a relief portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710621056.2A CN107239030B (en) | 2017-07-27 | 2017-07-27 | Processing box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710621056.2A CN107239030B (en) | 2017-07-27 | 2017-07-27 | Processing box |
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| Publication Number | Publication Date |
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| CN107239030A CN107239030A (en) | 2017-10-10 |
| CN107239030B true CN107239030B (en) | 2023-10-24 |
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| CN201710621056.2A Active CN107239030B (en) | 2017-07-27 | 2017-07-27 | Processing box |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181794A (en) * | 2018-02-09 | 2018-06-19 | 珠海天威飞马打印耗材有限公司 | A kind of handle box |
| CN108333900A (en) * | 2018-04-18 | 2018-07-27 | 中山市三润打印耗材有限公司 | A kind of waste powder hopper and handle box |
| CN108535989B (en) * | 2018-06-21 | 2021-02-19 | 珠海市拓佳科技有限公司 | Processing box |
| CN108873658A (en) * | 2018-07-02 | 2018-11-23 | 中山市三润打印耗材有限公司 | The assemble method of handle box |
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| CN1854933A (en) * | 2005-04-27 | 2006-11-01 | 佳能株式会社 | Processing box and imaging device |
| CN104880923A (en) * | 2015-06-17 | 2015-09-02 | 珠海市拓佳科技有限公司 | Photosensitive drum and charging roller separation structure |
| CN205103546U (en) * | 2015-11-20 | 2016-03-23 | 深圳超俊科技有限公司 | Isolating construction with roller that charges is roused in sensitization |
| CN106249563A (en) * | 2016-09-27 | 2016-12-21 | 中山市三润打印耗材有限公司 | Toner cartridge |
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| US6240266B1 (en) * | 1996-03-21 | 2001-05-29 | Canon Kabushiki Kaisha | Process cartridge and drum mount for photosensitive drum |
| JP3188435B2 (en) * | 1999-10-29 | 2001-07-16 | キヤノン株式会社 | Reproduction method of process cartridge |
| CN101320230B (en) * | 2007-06-09 | 2012-09-19 | 珠海天威技术开发有限公司 | Light sensitive drum and processing box |
| CN201373983Y (en) * | 2009-03-11 | 2009-12-30 | 珠海赛纳科技有限公司 | Processing box for image forming device |
| CN206515613U (en) * | 2016-04-15 | 2017-09-22 | 纳思达股份有限公司 | Delevoping cartridge |
| CN207198554U (en) * | 2017-07-27 | 2018-04-06 | 中山市泰威影印科技有限公司 | A kind of handle box |
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|---|---|---|---|---|
| CN1854933A (en) * | 2005-04-27 | 2006-11-01 | 佳能株式会社 | Processing box and imaging device |
| CN104880923A (en) * | 2015-06-17 | 2015-09-02 | 珠海市拓佳科技有限公司 | Photosensitive drum and charging roller separation structure |
| CN205103546U (en) * | 2015-11-20 | 2016-03-23 | 深圳超俊科技有限公司 | Isolating construction with roller that charges is roused in sensitization |
| CN106249563A (en) * | 2016-09-27 | 2016-12-21 | 中山市三润打印耗材有限公司 | Toner cartridge |
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| CN107239030A (en) | 2017-10-10 |
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