CN102385299A - Processing box and image forming device - Google Patents
Processing box and image forming device Download PDFInfo
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- CN102385299A CN102385299A CN2010102861558A CN201010286155A CN102385299A CN 102385299 A CN102385299 A CN 102385299A CN 2010102861558 A CN2010102861558 A CN 2010102861558A CN 201010286155 A CN201010286155 A CN 201010286155A CN 102385299 A CN102385299 A CN 102385299A
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Abstract
The invention provides a processing box comprising a developing unit which includes a developing frame and a developing roller rotatablely supported inside the developing frame; a photosensitive unit which includes a photosensitive frame and a photosensitive drum rotatablely supported inside the photosensitive frame, wherein the mutual arrangement of the developing frame and the photosensitive frame allows the photosensitive drum to be parallel to the developing roller; and a pair of connecting side plates which are located at two axial ends of the photosensitive drum and the developing roller and are fixedly connected with the developing frame and the photosensitive frame, wherein the developing roller contacts the photosensitive drum under pressure. At least one of the developing frame and the photosensitive frame is fixedly and mutually connected with the pair of connecting side plates through an interference-fitted pin. The pin is made of resin, and comprise a main body part; the main body part is interference-fitted with corresponding pin holes on the pair of connecting side plates and the developing frame and/or the photosensitive frame. The invention also provides an image forming device with the above construction.
Description
Technical field
The present invention relates to a kind of handle box and image processing system, relate in particular to a kind of integral type handle box that comprises photosensitive unit and developing cell with this handle box.
Background technology
In a kind of existing miniaturization image processing system, the developing cell that utilizes a pair of connection side plate will include developer roll connects into integral body with the photosensitive unit that includes photosensitive drums, can be with respect to the integral type handle box of image processing system mounting or dismounting thereby form.The detent mechanism that is arranged on the developing cell framework matches with a pair of positioning reference that is connected on the side plate respectively with detent mechanism on being arranged on the photosensitive unit framework; So that the photosensitive drums of confirming rotatably to be supported in the sensitization framework concerns with the between centers position that rotatably is supported on the developer roll in the developing frame, be fixedly connected with self-tapping screw between a pair of connection side plate and developing frame and the sensitization framework.In the handle box of above-mentioned structure; There is the minim gap that causes because of foozle between detent mechanism and the positioning reference; Therefore connecting side plate will be with respect to the dislocation that twists of photosensitive unit framework and developing cell framework under the residual torsional interaction of self-tapping screw, thereby influences the between centers bearing accuracy of developer roll and photosensitive drums.When serious; Possibly cause the parallelism error between photosensitive drums and the developer roll to surpass allowed band; Make that the pressure between photosensitive drums and the developer roll is local excessive or too small, be easy to occur that developer can't reliably shift, roller outside surface concentrated wear aggravation and problem such as abnormal sound occurs.For fear of the generation of above-mentioned rough sledding, need experienced assembly crewman in assembling process, to adjust the relative position that connects side plate and developing frame and sensitization framework usually, cause cost raising, production efficiency to reduce.
Also there is a kind of integral type handle box that utilizes roller-spring location in this area.In this kind handle box; Utilize self-tapping screw that a pair of connection side plate is connected on the sensitization framework; Utilize spring that developing frame is connected with a pair of side plate elasticity that is connected, connect side plate and developer roll is exerted pressure make developer roll contact with photosensitive drums pressure in the sensitization framework.At the two ends of development roll shaft the roller that hardness is higher than developer roll is set, is partially pressed into photosensitive drums to prevent that developer roll from crossing.The handle box of this structure can utilize the compound action of spring and roller to guarantee that the pressure between developer roll and the photosensitive drums is even, but this handle box number of components is more, complex structure, intensity difference, and the setting of spring force magnitude range is had relatively high expectations.
Summary of the invention
To the problems referred to above that prior art exists, the technical matters that the present invention will solve is, utilizes simple structure to reduce the affect positioning of assembling process to photosensitive drums in the integral type handle box and developer roll.
In order to address the above problem, the present invention proposes a kind of handle box, this handle box comprises: developing cell, this developing cell have developing frame and rotatably are supported on the developer roll in the said developing frame; Photosensitive unit, this photosensitive unit have the sensitization framework and rotatably are supported on the photosensitive drums in the said sensitization framework, and the mutual setting of wherein said developing frame and said sensitization framework makes said photosensitive drums parallel with said developer roll; And a pair of connection side plate, being connected with said sensitization frame fixation with said developing frame at the axial two ends of said photosensitive drums and said developer roll respectively, said developer roll contacts with said photosensitive drums pressure.In wherein said developing frame and the said sensitization framework at least one and the said a pair of pin connection fixed to one another that is connected side plate through interference fit.Said pin is formed from a resin, and comprises main part, said main part be formed on the said a pair of relative pin hole interference fit that is connected on side plate and said developing frame and/or the said sensitization framework.
Adopt the pin of interference fit to make in developing frame and the sensitization framework at least one be connected the side plate fixed connection among the present invention with a pair of; In assembling process, only need to pin apply along developer roll and photosensitive drum shaft to the power that is pressed into just can pin be packed in the corresponding pin hole; During being pressed into, can not produce moment of torsion; Therefore do not exist to make yet and connect the residual torque of side plate with respect to developing frame and the torsiversion malposition of sensitization framework; Avoided the adverse effect of assembling process, improved the precision of assembling the between centers bearing accuracy of developer roll and photosensitive drums.
According to another aspect of the present invention; In the developing frame of handle box and the sensitization framework one; For example developing frame and a pair of is connected the pin fixed to one another connection of side plate through interference fit, and another in developing frame and the sensitization framework passes through self-tapping screw connection fixed to one another with a pair of side plate that is connected.
In the handle box of above-mentioned configuration; Adopt the higher self-tapping screw of connective stability to fix to connect in developing frame and the sensitization framework one with a pair of side plate that is connected, another in developing frame and the sensitization framework is connected the side plate fixed connection through pinning with a pair of.The high vibration (for example in transportation, occurring) that so both can prevent handle box cause pin connect loosening, connect side plate and break away from developing frame and sensitization framework and cause parts damages, can reduce the influence of assembling process to a certain extent again to the between centers bearing accuracy.
According to another aspect of the present invention, pin may further include the head of an end that is integrally formed in main part, and the external diameter of said head is greater than the external diameter of said main part.The end that head and main part join can further form external diameter and become big stepped appearance along the direction away from said main part by rank.
After assembling is accomplished; Above-mentioned step-like head butt connects the surface of side plate; The major diameter end difference of head forms the gap with being connected between the surface of side plate, be convenient to the insertion instrument, and for example flathead screwdriver will be pinned and from pin hole, prized; Connect side plate and developing frame and/or sensitization framework apart thereby make, improved the dismounting maintainability of handle box.
According to another aspect of the present invention, pin is formed with at least one and the circular protrusion of pin hole interference fit on the main part, and when pin was pressed into pin hole, this circular protrusion can microdeformation take place and allow pin entering pin hole.After pin was pressed into, circular protrusion restored and closely cooperates with pin hole.Can increase pin like this and deviate from resistance, improve strength of joint.
According to another aspect of the present invention, the free end of main part can also be configured to external diameter along the taper that the direction away from head reduces gradually, can reduce the resistance of pinning and being run at the insertion initial stage.
According to another aspect of the present invention, can pin be arranged so that with respect to the size of the magnitude of interference of pin hole being pressed into the required pressing force of said pin is 20 to 100 newton.The pressing force of above-mentioned scope both had been convenient to operator's assembling and demounting process cartridge, and pin and pin hole are closely cooperated to guarantee strength of joint.
In addition, the present invention also provides a kind of image processing system, and this image processing system has the handle box of above-mentioned structure.
Description of drawings
Fig. 1 is the vertical outboard profile that cuts that schematically shows according to image processing system summary of the present invention;
Fig. 2 is the exploded perspective view according to the handle box of the embodiment of the invention;
Fig. 3 is the longitudinal sectional view according to the handle box of the embodiment of the invention;
Fig. 4 is the stereographic map according to the photosensitive unit of the embodiment of the invention;
Fig. 5 is the stereographic map according to the developing cell of the embodiment of the invention;
Fig. 6 is the front elevation that left side shown in Figure 3 connects side plate;
Fig. 7 is the front elevation that right side shown in Figure 3 connects side plate;
Fig. 8 is the stereographic map according to the pin of the embodiment of the invention.
Embodiment
Various embodiments of the present invention and feature and advantage thereof can be through understanding with reference to Fig. 1-8, and same label is used to identical counterpart in various figure.Specify embodiments of the invention with reference to accompanying drawing as required now.
Fig. 1 has schematically shown according to image processing system 1 of the present invention.In the following description, statement " preceding ", " back ", " on ", D score, " right side " and " left side " be used to define the different parts when image processing system 1 is placed on the orientation that is used.As shown in Figure 1, the left side indicating image of Fig. 1 forms " preceding " of device 1, and the right side indicating image of Fig. 1 forms " back " of device 1.Further, the left side indicating image when observing from the front of image processing system 1 forms " left side " side of device 1, and when " right side " side of the right side indicating image formation device 1 when the front of image processing system 1 is observed.
As shown in Figure 1, image processing system 1 comprises housing, and the scanning element 3 as exposure means is installed in this housing, and handle box 2 is removably disposed in the below of scanning element 3, that is, handle box 2 can be installed in this enclosure interior and from this housing, remove.Housing bottom at image processing system 1 also is provided with the paper feeding cassette 4 that holds print paper.
As shown in Figure 2, handle box 2 comprises photosensitive unit 21, developing cell 22 and a pair of side plate 23 that is connected.Photosensitive unit 21 has sensitization framework 211 and rotatably is supported on the photosensitive drums 212 in the sensitization framework 211.Developing cell 22 has developing frame 221 and rotatably is supported on the developer roll 222 in the developing frame 221, and developer container is contained in this developing frame 221.Left side connection side plate 23a is connected side plate 23b with the right side and is fixedly connected with sensitization framework 211 with developing frame 221 at the axial two ends (right ends) of photosensitive drums 212 and developer roll 222 respectively.Under connection status, photosensitive drums 212 and developer roll 222 parallel and pressure contacts each other, as shown in Figure 3.
When forming image, form electrostatic latent image above that to the surface of photosensitive drums 212 from the light beam irradiates of scanning element 3.The developer that is contained in the developing frame 221 is supplied on the surface of developer roll 222, forms the developer thin layer.Be carried on developer on the developer roll 222 is supplied to photosensitive drums 212 along with the rotation of developer roll 222 and photosensitive drums 212 lip-deep electrostatic latent image, make electrostatic latent image become visual developer image.Then; When the paper in paper feeding cassette 4 passes through handle box 2 through a series of transfer rollers in the housing that is arranged on image processing system 1 to transmitting; The developer image that is carried on the photosensitive drums 212 is transferred to through on the paper of photosensitive drums 212, and the transferred image that carries on the paper is followed at not shown fixation unit by photographic fixing.The paper that is formed with image at last is discharged on row's paper disc of image processing system 1.
To be described with reference to the accompanying drawings the concrete structure and the annexation of each ingredient of handle box 2 below.
As shown in Figure 2, left and right connection side plate 23a, the exterior contour of 23b is roughly the same, is the box-like of the open essentially rectangular of a side.Left and right connection side plate 23a, the stiffening rib that is formed with pin hole 231, photosensitive drums pilot hole 232 (as photosensitive unit location primary standard), developer roll pilot hole 234 (as developing cell location primary standard), photosensitive unit locator protrusions 233 (locating from benchmark), developing cell locator protrusions 235 (locating from benchmark) on the surface of under installment state, facing sensitization framework 211 and developing frame 221 of 23b and is crisscross arranged as developing cell as photosensitive unit.
Fig. 6 and 7 shows in detail the left and right side plate 23a that is connected, the structure of that side (inboard) of under installment state, facing sensitization framework 211 and developing frame 221 of 23b.As can be seen from the figure, photosensitive drums pilot hole 232 is configured to circular hole with developer roll pilot hole 234, and the axle head with photosensitive drum shaft 213 and development roll shaft 223 is complementary respectively.At left and right connection side plate 23a, the back edge that 23b is inboard is formed with two columniform photosensitive unit locator protrusionss of vertically arranging 233 respectively.At left and right connection side plate 23a, the leading edge of 23b inboard roughly midway also is formed with a columniform developing cell locator protrusions 235 respectively.
It is obvious that; Above-mentioned photosensitive unit locator protrusions 233 can also be configured to other suitable shapes with developing cell locator protrusions 235; And the quantity of photosensitive unit locator protrusions 233 and developing cell locator protrusions 235 with the position be set also be not limited to illustrated embodiment, can also change as required.
In the embodiment shown in 6 and 7, left and right side connects side plate 23a, and 23b is last to be formed with three pin holes 231 respectively.Wherein, a left side connects three pin holes 231 on the side plate 23a and is separately positioned on roughly centre position and back edge centre position roughly of lower limb front end, lower limb that a left side connects side plate 23a.Right three pin holes 231 that connect on the side plate 23b are separately positioned on the right lower limb front end that connects side plate 23b, lower limb roughly centre position and coboundary rear end.That is to say that it is slightly different that left and right connection side plate 23a, the pin hole 231 of 23b are provided with the position.This species diversity mainly is in order to adapt to the layout needs of parts on the left and right sides end face of sensitization framework 211 and developing frame 221 such as transmission gear.
Though in the illustrated embodiment; Be provided with three pin holes by above-mentioned configuration respectively on two connection side plates; But those skilled in the art can be easy to expect, the quantity of pin hole can be more than or equal to two, and the position is set can be according to design demand and conversion.But in order to reduce cost and to improve design freedom, the quantity of pin hole is preferably three.
With about be connected side plate 23a; 23b accordingly; The photosensitive unit pilot hole 214 that be formed with pin hole 215 on the left and right sides end face of sensitization framework 211, can engage with photosensitive unit locator protrusions 233; And photosensitive drum shaft 213 is projected into outside the left and right sides end face of sensitization framework 211, confirms that photosensitive drums 212 is with respect to the position that connects side plate 23 so that can embed in the corresponding photosensitive drums pilot hole 232.As shown in Figure 4; Photosensitive unit pilot hole 214 forms long hole shape slightly long on above-below direction; Thereby be connected side plate 23 on photosensitive unit locator protrusions 233 when engaging; Only limit the position of this photosensitive unit locator protrusions 233, and allow the displacement slightly on above-below direction (vertical direction) of this photosensitive unit locator protrusions 233 along fore-and-aft direction (horizontal direction).
With about be connected side plate 23a; 23b accordingly; The developing cell pilot hole 224 that be formed with pin hole 225 on the left and right sides end face of developing frame 221, can engage with developing cell locator protrusions 235; Development roll shaft 223 is projected into outside the end face of developing frame 221, confirms that developer roll 222 is with respect to the position that connects side plate 23 so that can embed in the corresponding developer roll pilot hole 234.Developing cell pilot hole 224 forms at fore-and-aft direction (horizontal direction) and goes up slightly long long hole shape; As shown in Figure 5; So that be connected side plate 23 on developing cell locator protrusions 235 when engaging; Only limit this developing cell and locate the 235 projections position of (vertical direction) along the vertical direction, and allow the displacement slightly on fore-and-aft direction (horizontal direction) of this developing cell locator protrusions 235.
The concrete structure of pin 24 of the present invention is as shown in Figure 8.Pin 24 is formed from a resin, and preferably uses the moderate plastic material of hardness and toughness, ABS for example, and PS, PC, POM, materials such as PP are made.Pin 24 comprises and pin hole 215,225 main part 241 of 231 interference fit.In order to realize interference fit, can make the external diameter of main part 241 be slightly larger than pin hole 215,225,231 diameter, such circular protrusion 243 that on main part, forms at least one and pin hole 215,225,231 interference fit shown in also can image pattern 8.24 be pressed into pin hole 215,225 will pinning, 231 o'clock, microdeformation can take place and allow to pin and 24 get into pin holes 215,225,231 in circular protrusion 243.After pin 24 is pressed into, circular protrusion 243 restore and with pin hole 215,225,231 closely cooperate.Thereby increased 24 the resistance of deviating from of pinning, improved strength of joint.
Preferably with main part 241 with respect to pin hole 215,225, the size of 231 the magnitude of interference be arranged so that be pressed into the pin 24 required pressing forces be 20 to 100 newton.The magnitude of interference of above-mentioned scope can satisfy connection request, and assembly manipulation is carried out easily, can also utilize the deformability of resin to alleviate the harmful effect that vibration and collision and brittle fracture brought between assembling and delivery period.
In addition, external diameter be can the free end of main part 241 be configured to, 24 pin hole 215,225,231 be pressed into more easily so that pin along the taper that reduces gradually away from the direction of head 242.
When assembling; The engaged at end that at first makes photosensitive drum shaft 213 is in the photosensitive drums pilot hole 214 that connects side plate 23; Photosensitive unit locator protrusions 233 joins in the photosensitive unit pilot hole 214; The engaged at end of development roll shaft 223 is in the developer roll pilot hole 224 that connects side plate 23, and developing cell locator protrusions 235 joins in the developing cell pilot hole 224, even photosensitive unit 21 is located with respect to a pair of side plate 23 that is connected with developing cell 22.Utilize instrument to pin then and 24 be pressed in the pin hole 231,215 that connects on side plate 23 and the sensitization framework 211, make a pair of connection side plate 23 be fixedly connected with sensitization framework 211 at the axial two ends of photosensitive drums 212.At last, pin 24 is pressed in the pin hole 231,225 that connects on side plate 23 and the developing frame 221, connects side plate 23 and be fixed on sensitization framework 211 and the developing frame 221 of connections the assembling completion of handle box 2.In above-mentioned assembling process, pin 24 in process of press in, receive along photosensitive drums 212 and developer roll 222 axially, i.e. left and right directions.Photosensitive drums 212 is being determined by the manufacturing accuracy that is connected detent mechanism on side plate 23, sensitization framework 211 and the developing frame 221 perpendicular to the bearing accuracy on the direction of left and right directions with developer roll 222; And can not be pressed into the influence of process; Therefore assembling process can not introduced new positioning error, and the bearing accuracy between photosensitive drums 212 and the developer roll 222 is improved.
More than in the handle box 2 of configuration, sensitization framework 211 all is fixedly connected with a pair of side plate 23 that is connected through pin 23 with developing frame 221.But, consider that the interference fit of pin 24 and pin hole may be unclamped when handle box 2 receives high vibration, and then cause parts damages.For fear of the problems referred to above, a preferred embodiment of the present invention adopts self-tapping screw 25 to connect sensitization framework 211 and a pair of side plate 23 that is connected, and is as shown in Figure 2.That is to say; Make photosensitive unit 21 and developing cell 22 with respect to after 23 location that are connected side plate; Self-tapping screw 25 is screwed in pin hole 231 and 215, makes a pair of connection side plate 23 be fixedly attached to sensitization framework 211, and then will pin and 23 be pressed in remaining pin hole to accomplish assembling.In the assembling process of preferable enforcement shown in Figure 2; Although be fixedly connected sensitization frameworks 211 and be connected side plate 23 and may cause connecting side plate with respect to 211 torsiversion malpositions of sensitization framework with self-tapping screw 25; But usually because the cooperating and the qualification effect that cooperates of photosensitive unit locator protrusions 233 and photosensitive unit pilot hole 214 of photosensitive drums pilot hole 232 and photosensitive drum shaft 213 ends; The positioning error that this torsiversion malposition is introduced is still in allowed band; And the connection that utilizes pin 24 to carry out subsequently can not introduced new error, and therefore so the rigging error of the handle box 2 of assembling still meets the requirements, and can prevent to connect the risk that side plate 23 breaks away from effectively.
Although do not show among the figure, obviously also can replace pin 24 to connect developing frame 221 and a pair of side plate 23 that is connected with a self tapping spiral shell 25.
In addition; Though the foregoing description has provided on connection side plate 23 locator protrusions 233 and 235 has been set; And the embodiment of pilot hole 214 and 224 is set respectively on sensitization framework 211 and developing frame 221; But those skilled in the art can be easy to expect on connection side plate 23, pilot hole is set, and the relative set locator protrusions also can be realized goal of the invention on sensitization framework 211 and developing frame 221.
Above-mentioned preferred embodiment of the present invention and accompanying drawing only are used to illustrate exploitativeness of the present invention, are not to be used to limit interest field of the present invention.Those of ordinary skill in the art should be appreciated that and can also make various changes and modifications preferred embodiment described herein and do not deviate from spirit of the present invention.Scope of the present invention is as the criterion with accompanying claims.
Reference numerals list
Image processing system 1 connects side plate 23
Handle box 2 pin holes 231
Photosensitive unit pilot hole 214 pins 24
Developing cell 22 heads 242
Developing frame 221 circular protrusions 243
Developer roll 222 self-tapping screws 25
Developing cell pilot hole 224 paper feeding cassettes 4
Claims (9)
1. handle box comprises:
Developing cell, this developing cell have developing frame and rotatably are supported on the developer roll in the said developing frame;
Photosensitive unit, this photosensitive unit have the sensitization framework and rotatably are supported on the photosensitive drums in the said sensitization framework, and the mutual setting of wherein said developing frame and said sensitization framework makes said photosensitive drums parallel with said developer roll; And
A pair of connection side plate is connected with said sensitization frame fixation with said developing frame at the axial two ends of said photosensitive drums and said developer roll respectively, and said developer roll contacts with said photosensitive drums pressure;
It is characterized in that:
In wherein said developing frame and the said sensitization framework at least one and the said a pair of pin connection fixed to one another that is connected side plate through interference fit,
Said pin is formed from a resin, and comprises main part, said main part be formed on the said a pair of relative pin hole interference fit that is connected on side plate and said developing frame and/or the said sensitization framework.
2. handle box as claimed in claim 1; It is characterized in that; In said developing frame and the said sensitization framework one with the said a pair of pin connection fixed to one another that is connected side plate through interference fit, another in said developing frame and the said sensitization framework passes through self-tapping screw connection fixed to one another with the said a pair of side plate that is connected.
3. handle box as claimed in claim 2 is characterized in that, said developing frame and the said a pair of pin fixed connection that is connected side plate through interference fit.
4. handle box as claimed in claim 1 is characterized in that, said pin further comprises:
Be integrally formed in the head of an end of said main part, the external diameter of said head is greater than the external diameter of said main part.
5. handle box as claimed in claim 4 is characterized in that, is formed with at least one circular protrusion on the said main part, said circular protrusion and said pin hole interference fit.
6. handle box as claimed in claim 4 is characterized in that, the end that said head and said main part join forms external diameter and becomes big stepped appearance along the direction away from said main part by rank.
7. handle box as claimed in claim 4 is characterized in that, the free end of said main part is configured to the taper that external diameter reduces along the direction away from said head gradually.
8. like any described handle box of claim in the claim 1 to 3, it is characterized in that said pin is arranged so that with respect to the size of the magnitude of interference of pin hole being pressed into the required pressing force of said pin is 20 to 100 newton.
9. an image processing system comprises like any described handle box of claim in the claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102861558A CN102385299A (en) | 2010-09-06 | 2010-09-06 | Processing box and image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102861558A CN102385299A (en) | 2010-09-06 | 2010-09-06 | Processing box and image forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102385299A true CN102385299A (en) | 2012-03-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102861558A Pending CN102385299A (en) | 2010-09-06 | 2010-09-06 | Processing box and image forming device |
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| Country | Link |
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| CN (1) | CN102385299A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103399477A (en) * | 2013-07-30 | 2013-11-20 | 珠海天威飞马打印耗材有限公司 | Processing box |
| CN110426938A (en) * | 2013-09-12 | 2019-11-08 | 佳能株式会社 | Box and drum unit for electro-photographic image forming apparatus |
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| CN1384405A (en) * | 2001-04-27 | 2002-12-11 | 佳能株式会社 | Processing box, electrophotographic imager and electric contact part assembling method |
| CN1497383A (en) * | 2002-09-30 | 2004-05-19 | ������������ʽ���� | Reproduction method of processing box or developing device |
| CN1499318A (en) * | 2002-11-06 | 2004-05-26 | 佳能株式会社 | Renewing method of processor cartridge |
| CN1786851A (en) * | 2004-12-08 | 2006-06-14 | 富士施乐株式会社 | Imaging cartridge, and assembling method and disassembling method thereof |
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| CN1314620A (en) * | 2000-03-07 | 2001-09-26 | 佳能株式会社 | Method for reproducing waste cartridge |
| CN1384405A (en) * | 2001-04-27 | 2002-12-11 | 佳能株式会社 | Processing box, electrophotographic imager and electric contact part assembling method |
| CN1497383A (en) * | 2002-09-30 | 2004-05-19 | ������������ʽ���� | Reproduction method of processing box or developing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103399477A (en) * | 2013-07-30 | 2013-11-20 | 珠海天威飞马打印耗材有限公司 | Processing box |
| CN110426938A (en) * | 2013-09-12 | 2019-11-08 | 佳能株式会社 | Box and drum unit for electro-photographic image forming apparatus |
| CN110426938B (en) * | 2013-09-12 | 2022-11-29 | 佳能株式会社 | Cartridge and drum unit for electrophotographic image forming apparatus |
| US11579561B2 (en) | 2013-09-12 | 2023-02-14 | Canon Kabushiki Kaisha | Cartridge and drum unit for electrophotographic image forming apparatus |
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Application publication date: 20120321 |