CN106896657A - A kind of drive assembly of photosensitive drum and handle box - Google Patents
A kind of drive assembly of photosensitive drum and handle box Download PDFInfo
- Publication number
- CN106896657A CN106896657A CN201610048180.XA CN201610048180A CN106896657A CN 106896657 A CN106896657 A CN 106896657A CN 201610048180 A CN201610048180 A CN 201610048180A CN 106896657 A CN106896657 A CN 106896657A
- Authority
- CN
- China
- Prior art keywords
- photosensitive drum
- drive assembly
- power transmission
- hole
- transmission shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 61
- 230000008520 organization Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000003384 imaging method Methods 0.000 description 17
- 239000000843 powder Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
- G03G15/757—Drive mechanisms for photosensitive medium, e.g. gears
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1839—Means for handling the process cartridge in the apparatus body
- G03G21/1842—Means for handling the process cartridge in the apparatus body for guiding and mounting the process cartridge, positioning, alignment, locks
- G03G21/1853—Means for handling the process cartridge in the apparatus body for guiding and mounting the process cartridge, positioning, alignment, locks the process cartridge being mounted perpendicular to the axis of the photosensitive member
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1839—Means for handling the process cartridge in the apparatus body
- G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
- G03G21/186—Axial couplings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Electrophotography Configuration And Component (AREA)
Abstract
The present invention relates to a kind of drive assembly of photosensitive drum and handle box, the drive assembly of photosensitive drum includes the drum gear being arranged in photosensitive drums and the power transmission shaft being connected with drum gear, the drive component also includes controlling organization, and the controlling organization can control the power transmission shaft along the direction movement parallel to the photosensitive drum shaft.Drive assembly of photosensitive drum and handle box that the present invention is provided, are movably disposed on photosensitive drum gear by by power transmission shaft along parallel photosensitive drum shaft direction, solve the problems, such as that drive component easily comes off in transit in the prior art.
Description
Technical field
The present invention relates to a kind of drive assembly of photosensitive drum and handle box.
Background technology
Generally, imaging device forms image on the print medium according to the picture signal of input.For example,
The multifunction peripheral (MFP) of printer, duplicator, facsimile machine and the combination function with the said equipment
Belong to imaging device.
Specifically, imaging device forms desired image according to following process.First, will feel
Light unit surface is charged to predetermined potential.By on the surface of laser beam projects to photosensitive unit, to be formed
Electrostatic latent image.Visual image is obtained to electrostatic latent image by by developer feeding.Then, photosensitive
The visual developer image developed on unit directs or through intermediate transfer medium and is transferred to printing Jie
In matter, then it is fixed on print media by fixing.
During said process, the handle box of imaging device by by developer feeding to photosensitive unit
And form visual image on the surface of photosensitive unit.Generally, handle box is configurable to include developer
The box of the one of powder cabin, charhing unit, developing cell and cleaning unit, and developing apparatus is removable
It is installed in the main body of imaging device with unloading.
Generally, handle box receives imaging by being assemblied in the drive assembly of photosensitive drum of photosensitive drums one end and sets
Standby driving force and work.U.S. Patent Application Publication specification US20080152388A1 is disclosed
A kind of handle box, the drive assembly of photosensitive drum of its photosensitive drums end uses sphere type gimbal structure, this
Plant driving structure and there are following deficiency：Ball is opened universal joint and is easily deviate from from gear, particularly exists
In the middle of transportation, this phenomenon is more easy to be occurred.
The content of the invention
The present invention provides a kind of drive assembly of photosensitive drum and handle box, to solve drive component in the prior art
The problem easily deviate from transit.
Above-mentioned technical purpose of the invention is to adopt the following technical scheme that to be achieved：
A kind of drive assembly of photosensitive drum, the photosensitive drums include a virtual photosensitive drum shaft, described photosensitive
Drum driving assembly includes the drum gear being arranged in photosensitive drums and the power transmission shaft being connected with drum gear, described
Drive component also includes controlling organization, and the controlling organization can control the power transmission shaft along parallel to described
The direction movement of photosensitive drum shaft.
Preferably, the controlling organization includes the first driving element and the second driving element, described first
Driving element can fill the power transmission shaft toward the direction movement away from the photosensitive drum shaft, and described second drives
Element can be by the position with the photosensitive drum shaft almost coaxial of the power transmission shaft movement.
Preferably, first driving element includes limited block and the first flexible member, the elasticity unit
Part connects the limited block and the power transmission shaft respectively；Second driving element includes sliding block, described
Sliding block is connected with the power transmission shaft.
Preferably, the photosensitive drum gear includes movable transmission mechanism, the movable transmission mechanism
Connect the power transmission shaft and drum gear.
Preferably, the power transmission shaft includes base, the movable transmission mechanism connect the base and
The drum gear.
Preferably, the movable transmission mechanism includes fixed plate, spring and guide pillar, the spring point
The fixed plate and guide pillar not being connected, hole being provided with the base, first is provided with the gear
Hole, the guide pillar is connected with first hole.
Preferably, the second hole is provided with the fixed plate, the gear also includes support column, described
Support column is connected with second hole.
Preferably, the 3rd hole is provided with the base, the guide pillar is detachably provided in described
In three holes.
Alternatively, the movable transmission mechanism includes fixed plate and bullet block, and the bullet block connection is described
Photosensitive drum gear and the power transmission shaft.
Preferably, the photosensitive drum gear include opening, the movable transmission mechanism also include pin and
Spring, is provided with depression and through hole on the opening, axis hole, the bullet block are provided with the bullet block
It is connected in the depression by pin and axis hole, the bullet block can stretch out or withdraw from the through hole, institute
State spring and connect the bullet block and fixed plate.
A kind of handle box, the handle box includes the drive assembly of photosensitive drum described in power upper ceasing to hold office one.
The handle box includes protecting cover, and opening is provided with the sliding block, and support is provided with the opening
Post, is provided with projection on the protecting cover, described raised in the opening, second flexible member
Connect the support column and the projection.
This present invention provide drive assembly of photosensitive drum and handle box, by by power transmission shaft along parallel photosensitive drums
Direction of principal axis is movably disposed on photosensitive drum gear, is solved drive component in the prior art and is easily being transported
The problem come off in defeated.
Other features and advantages of the present invention will illustrate in the following description, also, partly from froming the perspective of
Bright book becomes apparent, or is understood by implementing the present invention.The purpose of the present invention and other advantages
Can realize and obtain by specifically noted structure in specification, claims and accompanying drawing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to reality
The accompanying drawing to be used needed for example or description of the prior art is applied to be briefly described, it should be apparent that, under
Accompanying drawing in the description of face is some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the handle box that the present invention is provided.
Fig. 2 is the drive assembly of photosensitive drum structural representation that the present invention is provided.
Fig. 3 is the partial sectional view of the handle box that the present invention is provided.
Fig. 4 is the structural representation of the protecting cover that the present invention is provided.
Fig. 5 is the decomposing schematic representation of the drive assembly of photosensitive drum that the present invention is provided.
Fig. 6 is the sectional view of the drive assembly of photosensitive drum that the embodiment of the present invention one is provided.
Fig. 7 is the decomposing schematic representation of the photosensitive drums that the embodiment of the present invention one is provided.
Fig. 8 is the photosensitive drum gear structural representation that the embodiment of the present invention one is provided.
Fig. 9 is the sectional view of the photosensitive drums that the embodiment of the present invention two is provided.
Figure 10 is the decomposition texture schematic diagram of the photosensitive drums that the embodiment of the present invention two is provided.
Figure 11 is the structural representation of the photosensitive drum gear that the embodiment of the present invention two is provided.
Figure 12 is the structural representation of the power transmission shaft that the embodiment of the present invention two is provided.
Figure 13 is the bullet block structure schematic diagram that the embodiment of the present invention two is provided.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with this hair
Accompanying drawing in bright embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of creative work is not made
The every other embodiment for obtaining, belongs to the scope of protection of the invention.
As shown in figure 1, the handle box 1 that the present invention is provided, including waste powder hopper 2 and powder cabin 3, give up powder
Storehouse 2 includes photosensitive drums, and the drive component 10 for receiving driving force from imaging device is provided with photosensitive drums,
Photosensitive drum gear is provided with photosensitive drums.Set with force component identical side is driven on handle box 1
There is protecting cover 4, protecting cover 4 is used to support and protect gear train (not shown on figure), and gear train includes aobvious
Shadow roller gear and powder feeding roller gear etc..
As shown in Fig. 2 to 5, the drive component 10 that the present invention is provided includes power transmission shaft 11 and control machine
Structure, power transmission shaft 11 receives the photosensitive drums 20 of driving force and transmission from imaging device.Controlling organization can
Control power transmission shaft 11 is moved along the direction of the axle L of parallel photosensitive drums 20.
Photosensitive drums 20 include the photosensitive drum gear 21 that is disposed thereon, and photosensitive drum gear 21 is from power transmission shaft
11 receive driving force.
Specifically, controlling organization includes sliding block 12, limited block 15, the first flexible member 13 and second
Flexible member 14.
Limited block 15 is located at photosensitive drum gear one end, for supporting and limiting photosensitive drums 20.Second bullet
Property the one end of element 14 be located on limited block 15, one end and the elastic connection of power transmission shaft 11.Using elasticity
Deformation, can push to first position by power transmission shaft 11.
Sliding block 12 is arranged on the side of handle box 1, the elastic shape for overcoming the second flexible member 14
Become, power transmission shaft 11 is moved to the second place.Wherein, during first position, power transmission shaft 11 with it is photosensitive
The axle L of drum 20 is parallel but not coaxial；During the second place, the axle base of power transmission shaft 11 and photosensitive drums 20
This is parallel.The one end of sliding block 12 is located at power transmission shaft 11 nearby or is abutted with power transmission shaft 11, and the other end exists
When being fitted into imaging device, can be connected with the lid of imaging device.
One end connection sliding block 12 of the first flexible member 13, one end is connected with protecting cover 4, in initial bit
When putting, that is, when being not loaded into imaging device with the handle box 1 of drive component that the present invention is provided,
First flexible member 13 pushes sliding block toward the direction away from photosensitive drum shaft.In imaging device is fitted into,
And the lid of imaging device is shut, now, lid is abutted with sliding block, and overcomes the first flexible member 13
Elastic force, by sliding block toward near photosensitive drum shaft direction push so that, overcome the second flexible member
14 active force so that power transmission shaft 11 is moved to the second place.
Specifically, support column 161 and limited post 162, support column 161 are provided with limited block 15
It is used to support with limited post 162 and limits the second flexible member.Opening is provided with sliding block 12, is opened
Be provided with support member in mouthful, be provided with projection on protecting cover 4, the first flexible member 13 respectively with branch
Support part part and projection are connected.
Preferably, controlling organization of the invention be sliding block, limited block and flexible member, but, wherein
Sliding block and flexible member can also be realized by setting the structure of magnetic valve in the side of handle box.
Alternatively, pull bar can also be set to be connected with power transmission shaft, drawstring is provided with pull bar, drawstring is connected to
On the handle of handle box, by using person to the pick-and-place of handle come realize power transmission shaft photosensitive drum shaft to
Move in parallel.
The flexible member that the present invention is mentioned can be stage clip, leaf spring, leaf spring or other flexible members.
Embodiment one
As shown in Figure 6 to 8, photo-sensitive cell also includes, is arranged in the middle of photosensitive drum gear 21
Fixed plate 24 and elastic transmission motivation structure, movable transmission mechanism include guide pillar 22 and spring 23.Sense
Light drum gear 21 includes support column 211 and hole 210.Its mesopore 210 is through hole, and including step surface.
Guide pillar 22 includes upper part, lower part and center section, the wherein diameter of center section
More than upper part and lower part.The hole of photosensitive drum gear 21 is partly may pass through above guide pillar 22
210, center section abuts with step surface, and lower part is connected with spring 23, spring 23 it is another
End is connected with fixed plate 24.
Spacing hole 241 is provided with fixed plate 24, the support column 211 on photosensitive drum gear 21 with limit
Position hole 241 connects.
As shown in figure 5, power transmission shaft 11 includes claw 112, axle 111 and base 113, axle 111 connects
Claw 112 and base 113 are connect, hole 114 is additionally provided with base 113.Claw 112 be used for into
As the driving head of equipment is connected, receive driving force.Hole on base 113 is used for and movable driver
Structure is connected, and transmission is from the driving force of imaging device receiving to photosensitive drums 20.
When the lid of imaging device is not turned off, in the presence of the second flexible member 14, power transmission shaft
11 shift in the presence of power F1, so that guide pillar 22 departs from from hole 114；Closing
After lid, lid is applied with power F to sliding block, and power F is more than power F1 so that power transmission shaft 11 returns to base
This position coaxial with photosensitive drums L, power transmission shaft 11 drives with imaging device and rotates so that guide pillar 22
In returning to the hole 114 of base 113 in the presence of spring 23, so as to drive photosensitive drums 20 to turn together
It is dynamic.
Embodiment two
As shown in Fig. 9 to Figure 13, the present embodiment is with the difference of implementation one：Movable biography
The structure of motivation structure is different with embodiment one.
Specifically, in the present embodiment, movable transmission mechanism includes bullet block 26 and pin 27.Photosensitive drums
Gear 21 includes support column 211 and opening 212, and its split shed 212 includes through hole 214 and depression
213。
Bullet block 26 includes axis hole 260, support section 261 and ledge 262, and axis hole 260 is set
On support section 261, ledge 262 is protruded outward from one end of support section 261.Bullet
Block 26 is attached to photosensitive drum gear 21 by the cooperation of axis hole 260 and pin 27.Depression 213 is used for
Clamping pin 27.Bullet block 26 can be rotated around depression 213 on the opening 212 of photosensitive drum gear 21.
Ledge 262 can stretch out or withdraw from through hole 214.
The one end of spring 23 is connected with fixed plate, and one end is connected with bullet block, specifically with protuberance split-phase
To side connection, such that it is able in ledge 262 not by the case of external force, by protuberance
262 are divided to be ejected from through hole 214.
When ledge 262 stretches out from through hole 214, it can be with the hole of the base 113 of power transmission shaft 11
114 coordinate, so as to when power transmission shaft 11 receives driving force rotation from imaging device, drive photosensitive drums
Gear 21 is rotated together.When power transmission shaft 11 is subject to external force to deviate photosensitive drum shaft L, ledge
262 deviate from from the hole 114 of base 113.
Drive assembly of photosensitive drum and handle box that the present invention is provided, by can be along parallel photosensitive by power transmission shaft
Drum direction of principal axis is movably arranged on photosensitive drum gear, solves drive component in the prior art easy
The problem for coming off in transit.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than to it
Limitation；Although being described in detail to the present invention with reference to the foregoing embodiments, the ordinary skill of this area
Personnel should be understood：It can still modify to the technical scheme described in foregoing embodiments, or
Person carries out equivalent to which part technical characteristic；And these modifications or replacement, do not make corresponding skill
The essence of art scheme departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (12)
1. a kind of drive assembly of photosensitive drum, the photosensitive drums include a virtual photosensitive drum shaft, described
Drive assembly of photosensitive drum includes the drum gear being arranged in photosensitive drums and the power transmission shaft being connected with drum gear,
Characterized in that, the drive component also includes controlling organization, the controlling organization can control the biography
Moving axis is along the direction movement parallel to the photosensitive drum shaft.
2. drive assembly of photosensitive drum according to claim 1, it is characterised in that the control machine
Structure includes the first driving element and the second driving element, and first driving element can be by the power transmission shaft
Toward the direction movement away from the photosensitive drum shaft, second driving element can move the power transmission shaft
The position with the photosensitive drum shaft almost coaxial.
3. drive assembly of photosensitive drum according to claim 2, it is characterised in that described first drives
Dynamic element includes limited block and the first flexible member, and first flexible member connects described spacing respectively
Block and the power transmission shaft；Second driving element includes sliding block, and the sliding block connects with the power transmission shaft
Connect.
4. drive assembly of photosensitive drum according to claim 3, it is characterised in that the photosensitive drums
Gear includes movable transmission mechanism, and the movable transmission mechanism connects the power transmission shaft and drum tooth
Wheel.
5. drive assembly of photosensitive drum according to claim 4, it is characterised in that the power transmission shaft
Including base, movable transmission mechanism the connection base and the drum gear.
6. drive assembly of photosensitive drum according to claim 5, it is characterised in that described movable
Transmission mechanism includes fixed plate, spring and guide pillar, and the spring connects the fixed plate and guide pillar respectively,
The first hole is provided with the gear, the guide pillar is connected with first hole.
7. drive assembly of photosensitive drum according to claim 6, it is characterised in that the fixed plate
On be provided with the second hole, the gear also includes support column, and the support column is connected with second hole.
8. drive assembly of photosensitive drum according to claim 7, it is characterised in that on the base
The 3rd hole is provided with, the guide pillar is detachably provided in the 3rd hole.
9. drive assembly of photosensitive drum according to claim 5, it is characterised in that described movable
Transmission mechanism includes fixed plate and bullet block, and the bullet block connects the photosensitive drum gear and the transmission
Axle.
10. drive assembly of photosensitive drum according to claim 9, it is characterised in that described photosensitive
Drum gear includes opening, and the movable transmission mechanism also includes pin and spring, is set on the opening
There are depression and through hole, axis hole is provided with the bullet block, the bullet block is connected to institute by pin and axis hole
State in depression, the bullet block can stretch out or withdraw from the through hole, the spring connect the bullet block with
Fixed plate.
11. a kind of handle boxes, it is characterised in that the handle box includes that claim 3 to 8 is any
Described drive assembly of photosensitive drum.
A kind of 12. handle boxes according to claim 11, it is characterised in that the handle box bag
Protecting cover is included, opening is provided with the sliding block, support column is provided with the opening, on the protecting cover
Projection is provided with, described raised in the opening, second flexible member connects the support
Post and the projection.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995810X | 2015-12-21 | ||
| CN201510995810 | 2015-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106896657A true CN106896657A (en) | 2017-06-27 |
Family
ID=59190433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610048180.XA Pending CN106896657A (en) | 2015-12-21 | 2016-01-15 | A kind of drive assembly of photosensitive drum and handle box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106896657A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09174919A (en) * | 1995-12-25 | 1997-07-08 | Casio Electron Mfg Co Ltd | Image forming apparatus and its positioning mechanism |
| US20080152388A1 (en) * | 2006-12-22 | 2008-06-26 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
| CN101916055A (en) * | 2010-01-27 | 2010-12-15 | 珠海天威飞马打印耗材有限公司 | Drive assembly of photosensitive drum |
| CN201945802U (en) * | 2011-01-21 | 2011-08-24 | 珠海天威飞马打印耗材有限公司 | Drive assembly, photosensitive drum and processing box |
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| WO2012113289A1 (en) * | 2011-02-22 | 2012-08-30 | 珠海天威飞马打印耗材有限公司 | Rotary driving force receiving head and driving assembly |
| CN103345137A (en) * | 2013-07-02 | 2013-10-09 | 珠海天威飞马打印耗材有限公司 | Processing box for laser printer |
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| CN103439871A (en) * | 2010-01-28 | 2013-12-11 | 珠海赛纳打印科技股份有限公司 | Processing box |
| CN203551949U (en) * | 2013-11-11 | 2014-04-16 | 江西镭博钛电子科技有限公司 | Photosensitive drum drive component |
| CN204044515U (en) * | 2014-08-05 | 2014-12-24 | 江西镭博钛电子科技有限公司 | A kind of handle box |
| CN204883161U (en) * | 2015-06-19 | 2015-12-16 | 江西镭博钛电子科技有限公司 | Developing box |
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2016
- 2016-01-15 CN CN201610048180.XA patent/CN106896657A/en active Pending
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| US20080152388A1 (en) * | 2006-12-22 | 2008-06-26 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
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Application publication date: 20170627 |