CN103092043B - Cleaning doctor and handle box - Google Patents

Cleaning doctor and handle box Download PDF

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Publication number
CN103092043B
CN103092043B CN201310048920.6A CN201310048920A CN103092043B CN 103092043 B CN103092043 B CN 103092043B CN 201310048920 A CN201310048920 A CN 201310048920A CN 103092043 B CN103092043 B CN 103092043B
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CN
China
Prior art keywords
face
blade
cleaning doctor
knife rest
connecting portion
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.)
Active
Application number
CN201310048920.6A
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Chinese (zh)
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CN103092043A (en
Inventor
杨晓锋
马力
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Print Rite Unicorn Image Products Co Ltd
Original Assignee
Print Rite Unicorn Image Products Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Print Rite Unicorn Image Products Co Ltd filed Critical Print Rite Unicorn Image Products Co Ltd
Priority to CN201310048920.6A priority Critical patent/CN103092043B/en
Publication of CN103092043A publication Critical patent/CN103092043A/en
Priority to PCT/CN2014/071080 priority patent/WO2014121692A1/en
Application granted granted Critical
Publication of CN103092043B publication Critical patent/CN103092043B/en
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/0011Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a blade; Details of cleaning blades, e.g. blade shape, layer forming
    • G03G21/0029Details relating to the blade support

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cleaning In Electrography (AREA)
  • Electrophotography Configuration And Component (AREA)

Abstract

The invention provides a kind of cleaning doctor and handle box, this cleaning doctor comprises knife rest and blade, and blade has the connecting portion connected with knife rest and the operate portions contacted with photosensitive drums, and wherein, the thickness of operate portions is greater than the thickness of connecting portion.This handle box has housing, and housing surrounds the cavity accommodating consumptive material, is provided with photosensitive drums and aforesaid cleaning doctor in housing.The present invention is greater than the thickness of connecting portion by the thickness of the operate portions of blade, cleaning doctor is made to have better screen resilience, blade can be made to be close to photosensitive drums, thus improve clean dynamics, effectively avoided the appearance of bottom ash, the problem such as fuzzy by the handle box being provided with aforesaid cleaning doctor, improve the quality of prining of handle box.

Description

Cleaning doctor and handle box
Technical field
The present invention relates to printing consumables field, more particularly, relate to a kind of handle box and be arranged in handle box for removing the cleaning doctor of developer residual on light activated element.
Background technology
Image imaging device is a kind of equipment utilizing electrophotographic image forming principle to form image on recording materials, and image imaging device comprises duplicating machine, printer, facsimile recorder etc.The handle box used in image imaging device is a unit box at least comprising developer roll as developing apparatus and photosensitive drums, and handle box is installed in the main body of image imaging device in removably mode.
A typical image imaging device laser printer, laser printer is current one of image imaging device the most widely, and laser printer utilizes optical, electrical, hot physics, the principles of chemistry output character or image on the media such as paper.
With reference to Fig. 1, Fig. 1 is the imaging critical piece handle box 1 of laser printer, handle box 1 comprises a housing, and housing comprises and residual developer is housed as the waste powder hopper 11 of carbon dust and the powder storehouse 12 of developer as carbon dust that imaging is housed, and the two ends of handle box 1 are left side wall 13 and right side wall 15.
With reference to the STRUCTURE DECOMPOSITION figure that Fig. 2, Fig. 2 are the handle box 1 eliminating the parts such as powder storehouse and waste powder hopper, as seen from Figure 2, in handle box 1, be provided with cleaning doctor 14, charging roller 16, photosensitive drums 17, developer roll 18, powder feeding roller 19.
The groundwork process of laser printer can be divided into charging, exposure, development, transfer printing, fixing, clean, electric eliminating seven processes: in charging process, and laser printer utilizes corona mode uniformly to fill predetermined electric charge with to photosensitive drums 16 by charging roller 16.At exposure process, optionally expose photosensitive drums 16 surface of filling even predetermined charge with, because photosensitive drums 16 has light sensitive characteristic, the electric charge in the region be exposed will be grounded cancellation, like this, formed by the electrostatic latent image of CHARGE DISTRIBUTION on photosensitive drums 16 is shown.At developing process, the carbon dust being stored in powder storehouse is sent on developer roll 18 by powder feeding roller 19, and developer roll 18, utilizing electric field force transmission carbon dust on the electrostatic latent image region on photosensitive drums 17 surface, makes electrostatic latent image obtain visual.In transfer process, by transfer device, as transfer roll is transferred to the carbon dust on the electrostatic latent image on photosensitive drums 17 surface on paper.At fixing, by fixing device, the carbon dust on paper is secured in paper.At cleaning course, by cleaning doctor 14 carbon dust that photosensitive drum surface remains wiped off and be stored in waste powder hopper, in order to avoid make the carbon dust remained enter next imaging cycle, causing print defect.
As can be seen from above-mentioned imaging process, cleaning doctor is even more important in imaging process, when cleaning doctor can not remove remaining carbon dust, can have a strong impact on next imaging cycle and cause the appearance of the ash problems such as the end.
As shown in Figure 3, existing cleaning doctor 14 comprises knife rest 141 and blade 142, as shown in Figure 4, one end of the knife rest 141 of cleaning doctor 14 is fixedly connected with handle box housing its principle of work, and blade 142 has the connecting portion be connected with knife rest 141 and the operate portions contacted with photosensitive drums 17.Because the operate portions of blade 142 is close to photosensitive drum surface, when photosensitive drums 17 enters cleaning course, remaining carbon dust on surface can be scraped by the operate portions of blade 142 and fall into waste powder hopper, thus effectively must cleaning of photosensitive drum surface, makes photosensitive drums carry out next imaging cycle smoothly.
As shown in Figure 5, existing another kind of cleaning doctor 5 has knife rest 51 and blade 52, as shown in Figure 6, one end of the knife rest 51 of cleaning doctor 5 is fixedly connected with handle box housing its annexation, blade 52 has the connecting portion be connected with knife rest 51 and the operate portions contacted with photosensitive drums.
As described in Figure 7, existing another kind of cleaning doctor 7 has knife rest 71 and blade 72, as shown in Figure 8, one end of the knife rest 71 of cleaning doctor 7 is fixedly connected with handle box housing its annexation, and blade 72 has the connecting portion be connected with knife rest 71 and the operate portions contacted with photosensitive drums.
Common, blade is generally adhesive tape, and adhesive tape is by PU(polyurethane) material forms, due to its material characteristic, be generally have flexible.But the thickness due to blade work portion of the prior art is less than or equal to the thickness of blade attachment portion, cause the screen resilience of blade and clean dynamics deficiency.
Along with the development of science and technology, obtain raising at full speed for the various parts technology in laser printer processing box, meanwhile, the carbon dust used at present have also been obtained very large improvement, and carbon powder particle is more and more less, shape also more and more circle.Along with the development of carbon dust technology, the screen resilience of the cleaning doctor in handle box and clean dynamics faces enormous challenge and a difficult problem thus.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of cleaning doctor with better screen resilience and clean dynamics.
Another object of the present invention is to provide and is provided with a kind of handle box with the cleaning doctor of better screen resilience and clean dynamics.
For realizing above-mentioned fundamental purpose, the invention provides a kind of cleaning doctor, comprising knife rest and blade, blade has the connecting portion connected with knife rest and the operate portions contacted with photosensitive drums, and wherein, the thickness of operate portions is greater than the thickness of connecting portion.
From such scheme, the thickness of the operate portions contacted with photosensitive drums due to blade is greater than the thickness of the connecting portion be connected with knife rest with blade, utilize this structure, the operate portions of blade is made to have better screen resilience, to such an extent as to make blade to be close to photosensitive drums, thus improve clean dynamics, make next imaging cycle unaffected.
A preferred scheme is, connecting portion has the first end face docked with knife rest end face, blade is provided with second end face relative with the first end face, operate portions has the 3rd end face be positioned at below the first end face, and the distance between the 3rd end face and the second end face is greater than the distance between the first end face and the second end face.
Therefore the operate portions thickness due to blade is greater than the thickness of connecting portion, so better screen resilience will be had in the operate portions of blade, utilizes the simple structure of blade simultaneously, simplify production technology, reduce the production cost of cleaning doctor.
A preferred scheme is, have joint face between the first end face and the 3rd end face, joint face is perpendicular to the first end face.
Therefore; joint face is provided with between first end face and the 3rd end face of blade; and joint face is perpendicular to the first end face; the structure of the structure of blade joint face and existing knife rest can be utilized to match; when cleaning doctor contacts work with photosensitive drums; the maximum flexibility distortion of restriction blade, protection blade, from due to the improper stressed and damage that causes, also can ensure that blade has good screen resilience simultaneously.
A preferred scheme is, has joint face between the first end face and the 3rd end face, and the angle that joint face and the first end face are formed is obtuse angle.
Therefore the angle that joint face and the first end face are formed is obtuse angle, does not match with the structure of knife rest, this can make blade remove the restriction of some screen resiliences, can better screen resilience be provided with this, serve as and be better close to photosensitive drums, improve clean dynamics.
Blade has the first end face docked with knife rest end face, connecting portion is provided with second end face relative with the first end face, operate portions has the 3rd end face be positioned at below the second end face, and the distance between the 3rd end face and the first end face is greater than the distance between the second end face and the first end face.
Therefore, because blade to contact with photosensitive drums work, service time has been grown, and must occur the problem of blade loss, so the distance made by blade between the 3rd end face and the first end face is greater than the distance between the second end face and the first end face, the serviceable life of blade can be extended.
A preferred scheme is, connecting portion has the first end face docked with knife rest end face, connecting portion is provided with second end face relative with the first end face, operate portions has the 3rd end face be positioned at below the first end face and the 4th end face be positioned at below the second end face, and the distance between the 3rd end face and the 4th end face is greater than the distance between the first end face and the second end face.
Therefore blade not only can utilize knife rest not to be damaged to limit maximum flexibility distortion protection blade, blade can also be made more durable, extend the serviceable life of blade.
For realizing another above-mentioned object, the invention provides a kind of handle box, comprise housing, housing surrounds the cavity holding consumptive material, one end of cavity is provided with consumptive material outlet, handle box is also provided with the photosensitive drums being positioned at housing, and handle box is also provided with cleaning doctor, and its one end is fixed on housing, cleaning doctor comprises knife rest and blade, blade has the connecting portion connected with knife rest and the operate portions contacted with photosensitive drums, and wherein, the thickness of operate portions is greater than the thickness of connecting portion.
From such scheme, the above-mentioned cleaning doctor utilizing special tectonic is housed, the bottom ash that this handle box can be made to improve occur in imaging process, the problem such as fuzzy, improves handle box further and to print quality.
Accompanying drawing explanation
Fig. 1 is the structural drawing of handle box of the prior art.
Fig. 2 is the STRUCTURE DECOMPOSITION figure of handle box of the prior art.
Fig. 3 is the left view of the cleaning doctor of handle box of the prior art.
Fig. 4 is cleaning doctor of the prior art and photosensitive drums structural representation.
Fig. 5 is the stereographic map of the second cleaning doctor of the prior art.
Fig. 6 is the left view of the second cleaning doctor of the prior art.
Fig. 7 is the stereographic map of the third cleaning doctor of the prior art.
Fig. 8 is the left view of the third cleaning doctor of the prior art.
Fig. 9 is the stereographic map of the cleaning doctor of the first embodiment in the present invention.
Figure 10 is the left view of the cleaning doctor of the first embodiment in the present invention.
Figure 11 is the stereographic map of the cleaning doctor of the second embodiment in the present invention.
Figure 12 is the left view of the cleaning doctor of the second embodiment in the present invention.
Figure 13 is the stereographic map of the cleaning doctor of the 3rd embodiment in the present invention.
Figure 14 is the left view of the cleaning doctor of the 3rd embodiment in the present invention.
Figure 15 is the stereographic map of the cleaning doctor of the 4th embodiment in the present invention.
Figure 16 is the left view of the cleaning doctor of the 4th embodiment in the present invention.
Figure 17 is the stereographic map of the cleaning doctor of the 5th embodiment in the present invention.
Figure 18 is the left view of the cleaning doctor of the 5th embodiment in the present invention.
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
The present invention mainly improves the blade of cleaning doctor, so cleaning doctor how to be installed to handle box housing on and blade how to be connected on knife rest be not primary object of the present invention, and had a lot of method in prior art, therefore be not discussed.
First embodiment:
With reference to Fig. 9, Fig. 9 is the stereographic map of the cleaning doctor 9 of first embodiment of the invention, cleaning doctor 9 comprises knife rest 91 and blade 92 as can be seen from Figure 9, one end of knife rest 91 is fixedly connected with the housing of handle box, blade 92 has the connecting portion be connected with the other end of knife rest 91, and blade 92 also has the operate portions of the work that to contact with photosensitive drums.
With reference to Figure 10, utilize the left view of the cleaning doctor of the first embodiment to know to find out, the knife rest 91 of cleaning doctor 9 has the end face 91a docked with blade, and blade 92 also has the end face 92a docked with knife rest 91, that relative with end face 92a is end face 92c, is end face 92b below end face 92a.End face 92a is positioned at the connecting portion of blade 92, and end face 92b is positioned at the operate portions of blade 92.Further, the length of end face 92a distance end face 92c is L1, and the length of end face 92b distance end face 92c is L2, and L2 is greater than L1, and the left view of blade 92 is in falling " 7 " word shape.
Between end face 92a and end face 92b, be provided with joint face 93, as seen from Figure 10, joint face 93 is perpendicular to end face 92a.
Second embodiment:
With reference to Figure 11, Figure 11 is the stereographic map of the cleaning doctor 110 of second embodiment of the invention, cleaning doctor 110 comprises knife rest 111 and blade 112 as can be seen from Figure 11, one end of knife rest 111 is fixedly connected with the housing of handle box, blade 112 has the connecting portion be connected with the other end of knife rest 111, and blade 112 also has the operate portions of the work that to contact with photosensitive drums.
With reference to Figure 12, utilize the left view of the cleaning doctor of the second embodiment to know to find out, the knife rest 111 of cleaning doctor 11 has the end face 111a docked with blade, blade 112 also has the end face 112a docked with knife rest 111, that relative with end face 112a is end face 112c, below end face 112a, be provided with end face 112b, end face 112a is positioned at the connecting portion of blade 112, and end face 112b is positioned at the operate portions of blade 112.Further, the length of end face 112a distance end face 112c is L3, and the length of end face 112b distance end face 112c is L4, and L4 is greater than L3, and the left view of blade 112 is trapezoidal shape.
Between end face 112a and end face 112b, be connected with joint face 113, the angle formed between joint face 113 and end face 112a is obtuse angle.
3rd embodiment:
With reference to Figure 13, Figure 13 is the stereographic map of the cleaning doctor 130 of third embodiment of the invention, cleaning doctor 130 comprises knife rest 131 and blade 132 as can be seen from Figure 13, one end of knife rest 131 is fixedly connected with the housing of handle box, blade 132 has the connecting portion be connected with the other end of knife rest 131, and blade 132 also has the operate portions of the work that to contact with photosensitive drums.
With reference to Figure 14, utilize the left view of the cleaning doctor of the 3rd embodiment to know to find out, the knife rest 131 of cleaning doctor 13 has the end face 131a docked with blade, blade 132 also has the end face 132a docked with knife rest 131, that relative with end face 132a is end face 132c, below end face 132a, be provided with an end face 132b, end face 132a is positioned at the connecting portion of blade 132, and end face 132b is positioned at the operate portions of blade 132.Further, the length of end face 132a distance end face 132c is L5, and the length of end face 132b distance end face 132c is L6, and L6 is greater than L5, and the left view of blade 132 is in falling " 7 " word shape.
Between end face 132a and end face 132b, be provided with joint face 133, from Figure 14, joint face 133 is perpendicular to end face 132a.
4th embodiment:
With reference to Figure 15, Figure 15 is the stereographic map of the cleaning doctor 150 of third embodiment of the invention, cleaning doctor 150 comprises knife rest 151 and blade 152 as can be seen from Figure 15, one end of knife rest 151 is fixedly connected with the housing of handle box, blade 152 has the connecting portion be connected with the other end of knife rest 151, and blade 152 also has the operate portions of the work that to contact with photosensitive drums.
With reference to Figure 16, utilize the left view of the cleaning doctor of the 4th embodiment to know to find out, the knife rest 151 of cleaning doctor 15 has the end face 151a docked with blade, blade 152 also has the end face 152a docked with knife rest 151, that relative with end face 152a is end face 152b, is provided with an end face 152c below end face 152a, end face 152c relative be provided with an end face 152d, end face 152a and end face 152b is positioned at the connecting portion of blade 152, and end face 152c and end face 152d is positioned at the operate portions of blade 152.Further, the length of end face 152a distance end face 152b is L7, and the length of end face 152c distance end face 152d is L8, and L8 is greater than L7, and the left view of blade 152 is in " convex " word shape.
Joint face 153 is provided with between end face end face 152a and end face 152c, joint face 154 is provided with between end face 152b and end face 152d, joint face 153 is perpendicular to end face 152a, and joint face 154 is perpendicular to end face 152b, and the length of joint face 154 is greater than the length of joint face 153.
5th embodiment:
With reference to Figure 17, Figure 17 is the stereographic map of the cleaning doctor 170 of third embodiment of the invention, cleaning doctor 170 comprises knife rest 171 and blade 172 as can be seen from Figure 17, one end of knife rest 171 is fixedly connected with the housing of handle box, blade 172 has the connecting portion be connected with the other end of knife rest 171, and blade 172 also has the operate portions of the work that to contact with photosensitive drums.
With reference to Figure 18, utilize the left view of the cleaning doctor of the 5th embodiment to know to find out, the knife rest 171 of cleaning doctor 17 has the end face 171a docked with blade, blade 172 also has the end face 172a docked with knife rest 171, that relative with end face 172a is end face 172c, below end face 172b, be provided with an end face 172c, end face 172b is positioned at the connecting portion of blade 172, and end face 172c is positioned at the operate portions of blade 172.The length of end face 172a distance end face 172b is L9, and the length of end face 172a distance end face 172c is L10, and L10 is greater than L9, and the left view of blade 172 is in falling " 7 " word shape.
Between end face 172b and end face 172c, be provided with joint face 173, joint face 173 is perpendicular to end face 172b.
Handle box embodiment:
The handle box of the present embodiment comprises a housing, and housing surrounds the cavity accommodating carbon dust, and the lower end of cavity is provided with meal outlet, and carbon dust can flow out from meal outlet.Handle box also includes photosensitive drums and is arranged in housing, handle box also comprise in an above-described embodiment cleaning doctor, one end of cleaning doctor is fixed on housing, cleaning doctor comprises knife rest and blade, blade has the connecting portion connected with knife rest and the operate portions contacted with photosensitive drums, wherein, the thickness of operate portions is greater than the thickness of connecting portion.
Pass through the above embodiments, the knife rest can clearly understood for cleaning doctors different in prior art embodiment can solve the problems such as the not enough and clean dynamics of screen resilience is inadequate accordingly, the thickness being greater than connecting portion by the operate portions thickness of blade makes the operate portions of blade have better screen resilience, blade can be made to be close to photosensitive drums, thus improve clean dynamics, make next imaging cycle unaffected, cleaning doctor can also be made more durable simultaneously, extend the serviceable life of cleaning doctor.Avoided the appearance of bottom ash, the problem such as fuzzy by the handle box of the cleaning doctor being provided with above-described embodiment, improve the quality of prining of handle box.
Finally it is emphasized that and the invention is not restricted to above-mentioned embodiment, as cleaning doctor adopts the blade of other shapes, as long as the thickness that the thickness of operate portions is greater than connecting portion all should be included in the protection domain of the claims in the present invention.

Claims (2)

1. cleaning doctor, comprises
Knife rest and blade, the operate portions that described blade has connecting portion and contacts with photosensitive drums, described knife rest is only connected with described connecting portion;
It is characterized in that:
The thickness of described operate portions is greater than the thickness of described connecting portion;
Described connecting portion has the first end face docked with described knife rest end face; described blade is provided with second end face relative with described first end face; described operate portions has the 3rd end face be positioned at below described first end face, and the distance between described 3rd end face and described second end face is greater than the distance between described first end face and described second end face;
Have joint face between described first end face and described 3rd end face, the angle that described joint face and described first end face are formed is obtuse angle;
Described first end face, described 3rd end face and described joint face are positioned on the same side.
2. handle box, comprises
Housing, described housing surrounds the cavity holding consumptive material, and one end of described cavity is provided with consumptive material outlet;
Photosensitive drums, described photosensitive drums is arranged in described housing;
Cleaning doctor, one end of described cleaning doctor is fixed on the housing, and described cleaning doctor comprises knife rest and blade, the operate portions that described blade has connecting portion and contacts with described photosensitive drums, and described knife rest is only connected with described connecting portion;
It is characterized in that:
The thickness of described operate portions is greater than the thickness of described connecting portion;
Described connecting portion has the first end face docked with described knife rest end face; described blade is provided with second end face relative with described first end face; described operate portions has the 3rd end face be positioned at below described first end face, and the distance between described 3rd end face and described second end face is greater than the distance between described first end face and described second end face;
Have joint face between described first end face and described 3rd end face, the angle that described joint face and described first end face are formed is obtuse angle;
Described first end face, described 3rd end face and described joint face are positioned on the same side.
CN201310048920.6A 2013-02-07 2013-02-07 Cleaning doctor and handle box Active CN103092043B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201310048920.6A CN103092043B (en) 2013-02-07 2013-02-07 Cleaning doctor and handle box
PCT/CN2014/071080 WO2014121692A1 (en) 2013-02-07 2014-01-22 Cleaning scraper and processing box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310048920.6A CN103092043B (en) 2013-02-07 2013-02-07 Cleaning doctor and handle box

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CN103092043B true CN103092043B (en) 2016-03-09

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WO (1) WO2014121692A1 (en)

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CN103092043B (en) * 2013-02-07 2016-03-09 珠海天威飞马打印耗材有限公司 Cleaning doctor and handle box
JP2015175893A (en) * 2014-03-13 2015-10-05 株式会社リコー Cleaning blade, image forming apparatus including the same, and process cartridge
CN106527082A (en) * 2016-12-29 2017-03-22 珠海天威飞马打印耗材有限公司 Cartridge
TWI640846B (en) * 2018-01-31 2018-11-11 黑木股份有限公司 Printing and developing blade applied to copying device

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WO1994022060A1 (en) * 1993-03-23 1994-09-29 Indigo N.V. Liquid toner developing apparatus
JP2001013839A (en) * 1999-06-28 2001-01-19 Toshiba Tec Corp Process unit and image forming device using the same
CN1495557A (en) * 2002-09-24 2004-05-12 ������������ʽ���� Electric photographic device
CN1717635A (en) * 2002-11-27 2006-01-04 夏普株式会社 Developing device and image forming device provided with it
JP2007133018A (en) * 2005-11-08 2007-05-31 Tokai Rubber Ind Ltd Cleaning blade
CN101165611A (en) * 2006-10-17 2008-04-23 株式会社普利司通 Toner layer thickness regulation member and image forming apparatus having same
CN101592908A (en) * 2008-05-27 2009-12-02 佳能株式会社 Handle box and assembling thereof, dismounting and reproducing method

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