WO2013010452A1 - Racloir de nettoyage - Google Patents

Racloir de nettoyage Download PDF

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Publication number
WO2013010452A1
WO2013010452A1 PCT/CN2012/078556 CN2012078556W WO2013010452A1 WO 2013010452 A1 WO2013010452 A1 WO 2013010452A1 CN 2012078556 W CN2012078556 W CN 2012078556W WO 2013010452 A1 WO2013010452 A1 WO 2013010452A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
mounting groove
cleaning blade
elastic member
cleaning
Prior art date
Application number
PCT/CN2012/078556
Other languages
English (en)
Chinese (zh)
Inventor
苏健强
Original Assignee
珠海天威飞马打印耗材有限公司
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.)
Filing date
Publication date
Application filed by 珠海天威飞马打印耗材有限公司 filed Critical 珠海天威飞马打印耗材有限公司
Publication of WO2013010452A1 publication Critical patent/WO2013010452A1/fr

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements 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
    • G03G21/0011—Arrangements 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
    • G03G21/0029—Details relating to the blade support

Definitions

  • the present invention relates to a cleaning blade, and more particularly to a cleaning blade for removing developer remaining on a photosensitive member.
  • the present application claims priority to Chinese Patent Application No. 2011-10200942.0, entitled “Cleaning Scraper”, which is incorporated herein by reference.
  • An electrophotographic image forming apparatus such as a laser printer, is an apparatus that forms an image on an image forming medium such as paper by a process of charging, exposing, developing, transferring, fixing, and cleaning using an electrophotographic principle.
  • the developer required for imaging is usually provided by a developer cartridge detachably mounted to the image forming apparatus.
  • the surface of the photosensitive member such as the photosensitive drum, is uniformly charged with a predetermined charge by means of a charging device, such as a corona discharge method; during exposure, a selective exposure is applied to the surface of the photosensitive member that has been charged with a uniform predetermined charge.
  • a charging device such as a corona discharge method
  • the electric charge of the exposed region will be grounded, so that the surface of the photosensitive member after exposure forms an electrostatic latent image corresponding to the charge distribution to be formed by the image; during the development process,
  • the developer such as carbon powder, for forming a visible image is sent to the electrostatic latent image area of the surface of the photosensitive member by a force such as an electric field force, so that the electrostatic latent image is visualized; a process of transferring a developer on an electrostatic latent image on a surface of a photosensitive member to an image forming medium such as paper by a transfer device such as a transfer roller; and transferring the developer onto the image forming medium by a fixing device during a fixing process Secure on the image forming medium.
  • the cleaning process the developer remaining on the surface of the photosensitive member is scraped off by a cleaning device such as a cleaning blade to prevent the residual developer from entering the next image forming cycle, causing printing defects.
  • the prior art cleaning blade is fixed, and the positional relationship between the cleaning blade and the photosensitive member is also fixed. Therefore, the cleaning effect varies depending on the geometry of the cleaning blade and the photosensitive member, assembly error, and the like. It is possible that the cleaning blade is subjected to different pressures due to these errors and eventually causes the blade to flip. In addition, the tool holder is made of metal and the price is relatively expensive.
  • Fig. 12 is a view showing the structure of a cleaning blade 10 of the prior art, comprising a metal holder 11 and a plastic blade 12 which is fixed to the metal holder 11 by casting or bonding.
  • Figure 13 is a positional relationship of the cleaning blade shown in Figure 12 and the photosensitive member 2 in operation, the cleaning blade 10 is fixed to the casing 3 of the developer cartridge by screws, and the photosensitive member 2 is rotatably disposed by the positioning pin 21
  • the position of the photosensitive member 2 on the housing 3 is determined, so that the relative position between the cleaning blade 1 and the photosensitive member 2 is fixed, between the plastic blade 12 of the cleaning blade 10 and the photosensitive member 2.
  • Contact pressure cannot be adjusted automatically.
  • Such a cleaning blade has a problem that the blade is turned over due to excessive contact pressure and assembly pressure, and the cleaning effect is poor due to insufficient pressure.
  • a cleaning blade including a tool holder and a blade, and an elastic member is further disposed between the blade and the blade holder, and the blade is movable through the elastic member Grounded on the tool holder.
  • the tool holder has a mounting groove for accommodating the blade, the elastic member is positioned at a bottom of the mounting groove, a part of the blade is located in the mounting groove, and the The inner side of the blade is resiliently supported on the resilient member to effect reciprocation of the blade within the mounting slot.
  • the bottom of the mounting groove is formed with a positioning post
  • the elastic element is a spring sleeved on the positioning post
  • the length of the spring when unstressed is greater than the length of the positioning post length
  • the resilient element is an elastomeric rubber post that is inserted into the locating aperture.
  • the elastic members have at least two.
  • the elastic member is a toothed elastic rubber strip fixed to the bottom of the mounting groove.
  • the tool holder is an injection molded part made of a plastic material by an injection molding process. Since the price of plastic raw materials is lower than that of metal materials and the injection molding process is highly efficient, the manufacturing cost is low.
  • the invention has the beneficial effects that: since the blade is disposed on the tool holder through the elastic member, the blade can reciprocate relative to the tool holder by the action of the elastic member, and when the cleaning blade is installed in the developer cartridge or in the image forming apparatus, The adjustment of the elastic member can always maintain a proper contact pressure between the blade and the photosensitive member, thereby avoiding the problem that the blade is turned over due to excessive contact pressure or the cleaning effect is not good due to insufficient contact pressure.
  • Figure 1 is a perspective view of a first embodiment of the present invention.
  • Figure 2 is a cross-sectional view of the mounting groove of the first embodiment shown in Figure 1.
  • Figure 3 is an exploded perspective view of the first embodiment of Figure 1.
  • Figure 4 is an enlarged view of the spring in the first embodiment shown in Figure 3.
  • Figure 5 is a schematic view showing the working principle of the first embodiment shown in Figure 1.
  • Figure 6 is an exploded perspective view of a second embodiment of the present invention.
  • Figure 7 is a cross-sectional view of the mounting groove of the second embodiment shown in Figure 6.
  • Figure 8 is an enlarged view of the elastic rubber column in the second embodiment shown in Figure 6.
  • Figure 9 is an exploded perspective view of a third embodiment of the present invention.
  • Figure 10 is a cross-sectional view of the mounting groove of the third embodiment shown in Figure 9.
  • Figure 11 is an enlarged view of the toothed elastic rubber strip in the third embodiment shown in Figure 9.
  • Figure 12 is a schematic view showing the structure of a cleaning blade of the prior art.
  • Figure 13 is a schematic view showing the positional relationship of the cleaning blade and the photosensitive member shown in Figure 12 during operation.
  • a first embodiment of the cleaning blade of the present invention comprises a tool holder 4 and an insert 1 which is an injection molded part made of a plastic material by an injection molding process, and the blade 1 is a sheet of PU material.
  • the tool holder 4 has a mounting groove 41 for accommodating the blade 1, and a spring 5 positioned at the bottom of the mounting groove 41 is disposed between the blade 1 and the tool holder 4, and the number of the springs 5 is two or more.
  • the bottom of the mounting groove 41 is formed with a plurality of positioning posts 42 corresponding to the springs 5.
  • the positioning posts 42 are evenly distributed at the bottom of the mounting slots 41.
  • Each spring 5 is sleeved on a positioning post 42 for positioning.
  • the length is greater than the length of the positioning post 42.
  • a portion of the blade 4 is located in the mounting groove 41, and the inner side of the blade 4 is elastically supported on the spring 5, and the reciprocation of the blade 1 in the mounting groove 41 can be achieved by the action of the spring 5.
  • the above cleaning blade can be installed in a developer cartridge or used inside an image forming apparatus.
  • the holder 4 of the cleaning blade when mounted in the developer cartridge, the holder 4 of the cleaning blade is fixed to the casing 3 of the developer cartridge by screws or the like, and the photosensitive member 2 is rotatably provided on the casing 3.
  • the spring 5 is first mounted on the evenly distributed positioning post 42 on the bottom of the mounting groove 41, and then the blade 1 is mounted into the mounting groove 41 so that the inner side of the blade 1 is in contact with the spring 5, and the outer side is in contact with the photosensitive member 2.
  • the elastic force of the spring 5 is used to maintain a proper contact pressure between the blade 1 and the photosensitive member 2 to compensate for manufacturing errors and assembly errors of the respective components.
  • two or more positioning holes 43 are formed at the bottom of the mounting groove 41 of the tool holder 4, and the elasticity as an elastic member is provided between the blade 1 and the tool holder 4.
  • the rubber column 6, the number of the elastic rubber columns 6 corresponds to the number of the positioning holes 43, and each of the elastic rubber posts 6 is inserted into a positioning hole 43.
  • a toothed elastic rubber strip 7 as an elastic member is disposed between the blade 1 and the tool holder 4, and the toothed elastic rubber strip 7 is directly fixed by mounting or the like.
  • the above embodiments are only preferred embodiments of the present invention.
  • the present invention may further have more variations, for example, changes in the positioning structure of the bottom of the tool holder mounting groove, and changes in the type and number of elastic members. Variations in the material of the tool holder, and the like, can achieve the object of the present invention without departing from the scope of the present invention.
  • the cleaning blade of the present invention can be manufactured and used industrially.
  • the adjustment of the elastic member can maintain a proper contact pressure between the blade and the photosensitive member, thereby preventing the blade from being turned over due to excessive contact pressure or The problem of poor cleaning due to insufficient contact pressure. Therefore, the present invention has industrial applicability.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cleaning In Electrography (AREA)

Abstract

L'invention concerne un racloir de nettoyage pour retirer les résidus de révélateur sur un élément photosensible. Le racloir de nettoyage comprend un porte-lame (4) et une lame (1), et également un élément élastique (5) entre la lame (1) et le porte-lame (4), la lame (1) étant montée activement sur le porte-lame par le biais de l'élément élastique (5). Une rainure de montage (41) se trouve sur le porte-lame (4) pour recevoir la lame (1) ; l'élément élastique (5) est situé au bas de la rainure de montage (41), une partie de la lame (1) est située dans la rainure de montage (41), et la partie interne de la lame (1) est portée élastiquement sur l'élément élastique (5) pour obtenir un mouvement alternatif de la lame (1) sur la rainure de montage (41).
PCT/CN2012/078556 2011-07-18 2012-07-12 Racloir de nettoyage WO2013010452A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110200942.0 2011-07-18
CN201110200942A CN102331702A (zh) 2011-07-18 2011-07-18 清洁刮刀

Publications (1)

Publication Number Publication Date
WO2013010452A1 true WO2013010452A1 (fr) 2013-01-24

Family

ID=45483522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/078556 WO2013010452A1 (fr) 2011-07-18 2012-07-12 Racloir de nettoyage

Country Status (2)

Country Link
CN (1) CN102331702A (fr)
WO (1) WO2013010452A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102331702A (zh) * 2011-07-18 2012-01-25 珠海天威飞马打印耗材有限公司 清洁刮刀
JP5936370B2 (ja) 2012-01-25 2016-06-22 キヤノン株式会社 クリーニング装置、プロセスカートリッジ、画像形成装置
CN108127817B (zh) * 2017-12-27 2019-09-24 台州金福桂再生资源利用有限公司 一种弯曲废旧塑料的刮洗设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009025451A (ja) * 2007-07-18 2009-02-05 Canon Chemicals Inc 電子写真装置用ブレード及びその製造方法
CN201373981Y (zh) * 2009-03-17 2009-12-30 珠海赛纳科技有限公司 一种显影盒
CN102331702A (zh) * 2011-07-18 2012-01-25 珠海天威飞马打印耗材有限公司 清洁刮刀
CN202153296U (zh) * 2011-07-18 2012-02-29 珠海天威飞马打印耗材有限公司 一种清洁刮刀

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241350A (en) * 1992-08-31 1993-08-31 Xerox Corporation Blade holder with end clamps
JP4953741B2 (ja) * 2006-09-11 2012-06-13 株式会社リコー クリーニング装置、並びに、これを備える画像形成装置及びプロセスカートリッジ
CN201440203U (zh) * 2009-06-23 2010-04-21 深圳市乐普泰科技有限公司 一种显影辊控粉刮板

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009025451A (ja) * 2007-07-18 2009-02-05 Canon Chemicals Inc 電子写真装置用ブレード及びその製造方法
CN201373981Y (zh) * 2009-03-17 2009-12-30 珠海赛纳科技有限公司 一种显影盒
CN102331702A (zh) * 2011-07-18 2012-01-25 珠海天威飞马打印耗材有限公司 清洁刮刀
CN202153296U (zh) * 2011-07-18 2012-02-29 珠海天威飞马打印耗材有限公司 一种清洁刮刀

Also Published As

Publication number Publication date
CN102331702A (zh) 2012-01-25

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