JPH10111630A - Cleaner - Google Patents

Cleaner

Info

Publication number
JPH10111630A
JPH10111630A JP26390096A JP26390096A JPH10111630A JP H10111630 A JPH10111630 A JP H10111630A JP 26390096 A JP26390096 A JP 26390096A JP 26390096 A JP26390096 A JP 26390096A JP H10111630 A JPH10111630 A JP H10111630A
Authority
JP
Japan
Prior art keywords
cleaning brush
toner powder
cleaning
flicker
housing
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.)
Withdrawn
Application number
JP26390096A
Other languages
Japanese (ja)
Inventor
Hironori Numata
洋典 沼田
Yasuo Kikuchi
康夫 菊池
Akira Terakado
晃 寺門
Hirobumi Ouchi
博文 大内
Masato Miwa
正人 三輪
Manabu Suzuki
学 鈴木
Takahiro Kikuchi
隆広 菊池
Yosuke Saito
洋輔 西東
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki 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.)
Filing date
Publication date
Application filed by Hitachi Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP26390096A priority Critical patent/JPH10111630A/en
Publication of JPH10111630A publication Critical patent/JPH10111630A/en
Withdrawn legal-status Critical Current

Links

Landscapes

  • Cleaning In Electrography (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent toner powder, paper power and so on floating in a housing from resticking to a cleaning brush and a recovery roller by providing a hood member held on opposite the side where the cleaning brush is exposed. SOLUTION: A bias voltage having a polarity opposite that of recovered toner powder is applied to the cleaning brush 2, and it electrostatically attracts the toner powder, etc., on an image carrier surface. A flicker member 3 is in contact with the cleaning brush 2, in a low position and with a specific abrading width, and a flicker member 4 is in contact with the cleaning brush 2, further downstream than the flicker member 3 in the direction of the rotation of the cleaning brush and with a specific abrading width, both of which shake off a part of the toner powder and so on attracted to the cleaning brush 2. Further, the toner powder and so on are attracted to the recovery roller 5 to which a voltage is applied, and they are scraped off by a blade member 6. In the position opposite the side where the cleaning brush 2 is exposed, a hood member 7 is provided for intercepting a wind stream, specifically, in the C direction.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、感光体等の像担持
体表面に付着したトナー粉や紙粉等を、像担持体表面か
ら除去する清掃装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for removing toner powder, paper powder and the like adhering to the surface of an image carrier such as a photoreceptor from the surface of the image carrier.

【0002】[0002]

【従来の技術】レーザプリンタや複写機などに代表され
る電子写真装置において、像担持体表面に付着したトナ
ー粉等を除去する清掃装置として、像担持体表面に対し
所定の擦過幅をもってクリーニングブラシを摺擦させ、
像担持体表面から付着物を除去する様にした清掃装置が
知られている。
2. Description of the Related Art In an electrophotographic apparatus typified by a laser printer, a copying machine, etc., as a cleaning device for removing toner powder or the like adhering to the surface of an image carrier, a cleaning brush having a predetermined rubbing width against the surface of the image carrier. Rub
2. Description of the Related Art There is known a cleaning device for removing extraneous matter from the surface of an image carrier.

【0003】[0003]

【発明が解決しようとする課題】この種の清掃装置にお
いては、クリーニングブラシによって清掃装置のハウジ
ング内に回収されたトナー粉等が、クリーニングブラシ
の回転等により生じる風の流れによりハウジング内で循
環し、再びクリーニングブラシに付着してしまうという
現象が生じやすく、トナー粉等が再付着した汚れたクリ
ーニングブラシでは、像担持体表面を十分に清掃するこ
とができず、また、汚れたクリーニングブラシを像担持
体表面に摺擦させることにより、例えば縦すじ汚れ等の
印刷障害を招いてしまうという欠点があった。
In this type of cleaning device, toner powder and the like collected in the housing of the cleaning device by the cleaning brush are circulated in the housing by the flow of wind generated by rotation of the cleaning brush and the like. The phenomenon that the toner powder adheres to the cleaning brush easily occurs, and the dirty cleaning brush to which the toner powder or the like has re-attached cannot sufficiently clean the surface of the image carrier. Sliding the surface of the carrier has a drawback of causing printing troubles such as vertical streaking.

【0004】本発明の目的は、ハウジング内に回収され
たトナー粉等がクリーニングブラシに再付着しにくい清
掃装置を提供することにある。
An object of the present invention is to provide a cleaning device in which toner powder and the like collected in a housing are less likely to adhere to a cleaning brush.

【0005】[0005]

【課題を解決するための手段】上記目的は、ハウジング
内に回転可能に支持され、ハウジングに設けられた開口
部から一部を露出させたクリーニングブラシと、前記ク
リーニングブラシに接触し、クリーニングブラシに付着
したトナー粉等を払い落とすフリッカ部材と、前記クリ
ーニングブラシに接触し、クリーニングブラシに付着し
たトナー粉等を回収する回収ローラと、前記回収ローラ
表面に当接し、回収ローラに付着したトナー粉等を掻き
落とすブレード部材と、前記クリーニングブラシの露出
側とは反対側に保持され、前記ハウジング内を浮遊する
トナー粉等のクリーニングブラシおよび回収ローラへの
再付着を防ぐ庇部材とを有することにより達成される。
SUMMARY OF THE INVENTION It is an object of the present invention to provide a cleaning brush rotatably supported in a housing and partially exposed from an opening provided in the housing; A flicker member for removing attached toner powder and the like, a collection roller for contacting the cleaning brush and collecting the toner powder and the like attached to the cleaning brush, and a toner powder and the like contacting the collection roller surface and attaching to the collection roller Achieved by having a blade member for scraping off the cleaning brush and an eave member which is held on the side opposite to the exposed side of the cleaning brush and prevents reattachment of toner powder and the like floating in the housing to the cleaning brush and the collection roller. Is done.

【0006】[0006]

【発明の実施の形態】以下、本発明の一実施例を図面を
参照しながら説明する。図1は本発明の清掃装置の側面
断面図、図2は本発明の清掃装置に用いるフリッカ部材
の正面図である。
DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view of the cleaning device of the present invention, and FIG. 2 is a front view of a flicker member used in the cleaning device of the present invention.

【0007】図1において、清掃装置のハウジング1内
にはクリーニングブラシ2が矢印A方向へ回転可能に支
持されている。クリーニングブラシ2の一部はハウジン
グ1に設けられた開口部1aから露出し、この露出領域
にて図示しない像担持体表面に付着したトナー粉あるい
は紙粉等の除去がなされる。
In FIG. 1, a cleaning brush 2 is supported in a housing 1 of the cleaning device so as to be rotatable in the direction of arrow A. A part of the cleaning brush 2 is exposed from an opening 1a provided in the housing 1, and in this exposed area, toner powder or paper powder attached to the surface of the image carrier (not shown) is removed.

【0008】クリーニングブラシ2には、回収されるト
ナー粉が有する極性と逆の極性のバイアス電圧が印加さ
れており、前記像担持体表面のトナー粉等を静電的に吸
着する。
The cleaning brush 2 is applied with a bias voltage having a polarity opposite to the polarity of the collected toner powder, and electrostatically attracts the toner powder and the like on the surface of the image carrier.

【0009】フリッカ部材3はクリーニングブラシ2下
部において所定の擦過幅をもって接触し、フリッカ部材
4はフリッカ部材3に対しクリーニングブラシ回転方向
下流側において所定の擦過幅をもってクリーニングブラ
シ2と接触しており、クリーニングブラシ2に吸着され
たトナー粉等の一部を払い落とす。
The flicker member 3 contacts the lower portion of the cleaning brush 2 with a predetermined rubbing width, and the flicker member 4 contacts the cleaning brush 2 with a predetermined rubbing width downstream of the flicker member 3 in the direction of rotation of the cleaning brush. A part of the toner powder or the like adsorbed on the cleaning brush 2 is wiped off.

【0010】フリッカ部材3,4は、動摩擦係数0.2
5以下の潤滑性のよい軸受け材料、例えば、ポリアセタ
ール、ポリアミド系エンジニアリングプラスチックを用
いてなる軸受け8を介してハウジング1に支持されてお
り、長期間にわたって安定した回転が得られる構造とな
っている。本実施例においては、上記潤滑摺動材料とし
てバンドー化学株式会社製ミューライト(商品名)D−4
11を用いた。なお、フリッカ部材3,4は、クリーニ
ングブラシ2との接触により矢印方向へ自由回転するよ
うに構成されており、これによってD部へのトナー粉等
の堆積、固着が防止される。
The flicker members 3 and 4 have a dynamic friction coefficient of 0.2.
It is supported by the housing 1 via a bearing 8 made of a bearing material having good lubricity of 5 or less, for example, polyacetal or polyamide-based engineering plastic, and has a structure in which stable rotation can be obtained for a long period of time. In this embodiment, as the lubricating sliding material, M-4 (trade name) manufactured by Bando Chemical Co., Ltd.
11 was used. The flicker members 3 and 4 are configured to freely rotate in the direction of the arrow by contact with the cleaning brush 2, thereby preventing the accumulation and fixation of the toner powder and the like on the portion D.

【0011】また、使用するトナーと同一の帯電極性を
有することが可能な材料を選定し、この材料を用いてフ
リッカ部材3,4表面をコーティングすると、D部への
トナー粉等の堆積、固着がより防止される。本実施例に
おいてはコーティング材として、ふっ素樹脂を用いてい
る。なお、コーティング材はふっ素樹脂に限定されず、
ポーリングの電気陰性度値が2〜4の材料を適宜選択し
て用いることができる。
When a material capable of having the same charge polarity as the toner to be used is selected and the surfaces of the flicker members 3 and 4 are coated with this material, the accumulation and fixation of the toner powder and the like on the D portion Is more prevented. In this embodiment, a fluororesin is used as the coating material. In addition, the coating material is not limited to fluororesin,
A material having an electronegativity value of 2 to 4 for poling can be appropriately selected and used.

【0012】さらに、フリッカ部材3,4の両端部には
図2に示す様なテーパが設けられており、クリーニング
ブラシ2の長手方向にわたり均一に接触する様に構成さ
れている。
Further, the both ends of the flicker members 3 and 4 are provided with a taper as shown in FIG. 2 so as to make uniform contact over the length of the cleaning brush 2.

【0013】また、クリーニングブラシ2下部には、回
収ローラ5が矢印B方向へ回転可能に支持されており、
フリッカ部材3,4間におけるクリーニングブラシ2に
接触するように設けられている。回収ローラ5表面に
は、回収ローラ5に付着したトナー粉等を掻き落とすブ
レード部材6が当接している。
A collection roller 5 is supported below the cleaning brush 2 so as to be rotatable in the direction of arrow B.
It is provided so as to contact the cleaning brush 2 between the flicker members 3 and 4. A blade member 6 for scraping off toner powder and the like attached to the collection roller 5 is in contact with the surface of the collection roller 5.

【0014】フリッカ部材3,4で払い落とされなかっ
たトナー粉等は、クリーナブラシ2よりも高い電圧が印
加された回収ローラ5に吸着され、回収ローラ5に吸着
されたトナー粉等はブレード部材6により掻き落とされ
る。
The toner powder and the like that have not been removed by the flicker members 3 and 4 are attracted to the collecting roller 5 to which a voltage higher than that of the cleaner brush 2 is applied. It is scraped off by 6.

【0015】さらに、クリーニングブラシ2の露出側と
は反対側の位置には庇部材7が設けられている。
Further, an eaves member 7 is provided at a position opposite to the exposed side of the cleaning brush 2.

【0016】クリーニングブラシ2と回収ローラ5の回
転により、ハウジング1内にはC方向の風の流れが生
じ、トナー粉等がE部に堆積しやすくなり、この状態の
ままにしておくと、E部に舞い上げられたトナー粉等
が、自由落下する過程においてクリーニングブラシ2お
よび回収ローラ5等へ再付着してしまう。
The rotation of the cleaning brush 2 and the collection roller 5 causes a flow of air in the direction C in the housing 1, so that toner powder and the like easily accumulate in the portion E. The toner powder and the like sowed up on the cleaning unit reattach to the cleaning brush 2 and the collection roller 5 during the free fall process.

【0017】C方向の風の流れを遮る庇部材7をF部に
設けることにより、E部に堆積、固着したトナー粉等が
クリーニングブラシ2および回収ローラ5へ再付着する
ことがなくなる。
The provision of the eaves member 7 for blocking the flow of wind in the direction C at the portion F prevents the toner powder or the like deposited and fixed at the portion E from re-adhering to the cleaning brush 2 and the collection roller 5.

【0018】庇部材7は、フリッカ部材3,4同様、使
用するトナーと同一の帯電極性を有することが可能な材
料により形成される。本実施例においては庇部材7をふ
っ素樹脂製シートで構成している。なお、庇部材7はふ
っ素樹脂製シートに限定されず、ポーリングの電気陰性
度値が2〜4の材料を適宜選択して用いることができ
る。あるいは、庇部材7にトナーと同極性のバイアスを
印加しても同様の効果が得られる。
The eaves member 7, like the flicker members 3 and 4, is made of a material capable of having the same charge polarity as the toner used. In this embodiment, the eaves member 7 is formed of a fluororesin sheet. The eaves member 7 is not limited to a fluororesin sheet, and a material having a poling electronegativity value of 2 to 4 can be appropriately selected and used. Alternatively, the same effect can be obtained even if a bias having the same polarity as that of the toner is applied to the eaves member 7.

【0019】なお、本実施例の説明では、クリーニング
ブラシ2にバイアスを印加した、いわゆるバイアスクリ
ーニング方式として述べたが、例えばファーブラシ方式
等のノンバイアスクリーニング方式に適用してもよい。
In the description of this embodiment, a so-called bias cleaning system in which a bias is applied to the cleaning brush 2 has been described. However, the present invention may be applied to a non-bias cleaning system such as a fur brush system.

【0020】[0020]

【発明の効果】以上述べた如く、本発明によれば、ハウ
ジング内に浮遊するトナー粉や紙粉等のクリーニングブ
ラシおよび回収ローラへの再付着を防ぐことができ、縦
すじ汚れ等の印刷障害が解消することができる。
As described above, according to the present invention, it is possible to prevent toner powder and paper powder floating in the housing from re-adhering to the cleaning brush and the collecting roller, and to prevent printing troubles such as vertical streaks. Can be eliminated.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の清掃装置の側面断面図。FIG. 1 is a side sectional view of a cleaning device of the present invention.

【図2】本発明の清掃装置に用いるフリッカ部材の正面
図。
FIG. 2 is a front view of a flicker member used in the cleaning device of the present invention.

【符号の説明】[Explanation of symbols]

1…ハウジング、2…クリーニングブラシ、3,4…フ
リッカ部材、5…回収ローラ、6…ブレード部材、7…
庇部材、8…軸受け。
DESCRIPTION OF SYMBOLS 1 ... Housing, 2 ... Cleaning brush, 3, 4 ... Flicker member, 5 ... Collection roller, 6 ... Blade member, 7 ...
Eave member, 8 ... bearing.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 大内 博文 茨城県ひたちなか市武田1060番地 日立工 機株式会社内 (72)発明者 三輪 正人 茨城県ひたちなか市武田1060番地 日立工 機株式会社内 (72)発明者 鈴木 学 茨城県ひたちなか市武田1060番地 日立工 機株式会社内 (72)発明者 菊池 隆広 茨城県ひたちなか市武田1060番地 日立工 機株式会社内 (72)発明者 西東 洋輔 茨城県ひたちなか市武田1060番地 日立工 機株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hirofumi Ouchi 1060 Takeda, Hitachinaka-shi, Ibaraki Prefecture Inside Hitachi Koki Co., Ltd. (72) Inventor Masato Miwa 1060 Takeda, Hitachinaka-shi, Ibaraki Prefecture Inside Hitachi Koki Co., Ltd. (72 Inventor Manabu Suzuki 1060 Takeda, Hitachinaka-city, Ibaraki Pref.Hitachi Koki Co., Ltd. (72) Inventor Takahiro Kikuchi 1060 Takeda, Hitachinaka-shi, Ibaraki Pref. 1060 Hitachi Koki Co., Ltd.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】ハウジング内に回転可能に支持され、ハウ
ジングに設けられた開口部から一部を露出させたクリー
ニングブラシと、 前記クリーニングブラシに接触し、クリーニングブラシ
に付着したトナー粉等を払い落とすフリッカ部材と、 前記クリーニングブラシに接触し、クリーニングブラシ
に付着したトナー粉等を回収する回収ローラと、 前記回収ローラ表面に当接し、回収ローラに付着したト
ナー粉等を掻き落とすブレード部材と、 前記クリーニングブラシの露出側とは反対側に保持さ
れ、前記ハウジング内を浮遊するトナー粉等のクリーニ
ングブラシおよび回収ローラへの再付着を防ぐ庇部材と
を有することを特徴とする清掃装置。
A cleaning brush rotatably supported in a housing and partially exposed from an opening provided in the housing; and a cleaning brush that comes into contact with the cleaning brush and wipes off toner powder and the like attached to the cleaning brush. A flicker member, a collection roller that contacts the cleaning brush and collects toner powder and the like attached to the cleaning brush, a blade member that contacts the surface of the collection roller and scrapes off the toner powder and the like attached to the collection roller, A cleaning device comprising: a cleaning brush held on a side opposite to an exposed side of the cleaning brush, and an eave member for preventing toner powder and the like floating in the housing from re-adhering to a collection roller.
【請求項2】前記フリッカ部材は、前記クリーニングブ
ラシによって回収されたトナーと同一の帯電極性を有す
ることを特徴とする請求項1記載の清掃装置。
2. The cleaning device according to claim 1, wherein the flicker member has the same charging polarity as the toner collected by the cleaning brush.
【請求項3】前記庇部材は、前記クリーニングブラシに
よって回収されたトナーと同一の帯電極性を有すること
を特徴とする請求項1記載の清掃装置。
3. The cleaning device according to claim 1, wherein the eaves member has the same charging polarity as the toner collected by the cleaning brush.
JP26390096A 1996-10-04 1996-10-04 Cleaner Withdrawn JPH10111630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26390096A JPH10111630A (en) 1996-10-04 1996-10-04 Cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26390096A JPH10111630A (en) 1996-10-04 1996-10-04 Cleaner

Publications (1)

Publication Number Publication Date
JPH10111630A true JPH10111630A (en) 1998-04-28

Family

ID=17395824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26390096A Withdrawn JPH10111630A (en) 1996-10-04 1996-10-04 Cleaner

Country Status (1)

Country Link
JP (1) JPH10111630A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7391992B2 (en) * 2003-09-17 2008-06-24 Ricoh Company, Ltd. Sheet conveying unit, and image reading unit, post-processing unit, and image forming apparatus employing the sheet conveying unit
CN101872150A (en) * 2009-04-24 2010-10-27 京瓷美达株式会社 Cleaning device and image processing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7391992B2 (en) * 2003-09-17 2008-06-24 Ricoh Company, Ltd. Sheet conveying unit, and image reading unit, post-processing unit, and image forming apparatus employing the sheet conveying unit
CN101872150A (en) * 2009-04-24 2010-10-27 京瓷美达株式会社 Cleaning device and image processing system

Similar Documents

Publication Publication Date Title
US4392742A (en) Liquid developer copier cleaning system incorporating resilient closed-cell cleaning roller
US4739370A (en) Cleaning device
EP1582941B1 (en) Cleaning apparatus
JP3965951B2 (en) Lubricant application device
US5349429A (en) Cleaner blade lubricating system
US6640081B2 (en) Image forming apparatus including elastic cleaning blade with resin film formed only at ends thereof and process cartridge including same
JPH10111630A (en) Cleaner
JPH0128943B2 (en)
JPH09114342A (en) Cleaning device for image forming device
JP2005250047A (en) Transfer conveyance device
US6094553A (en) Cleaning member employing flexible blades and brushes for surface of developer roller
JPH10214008A (en) Cleaning device
JPH05341624A (en) Image forming device with contact electrifying device
JP3596718B2 (en) Cleaning equipment
JPH1074028A (en) Cleaning device for image forming device
JPH10171322A (en) Cleaner
JP2624879B2 (en) Image forming device
JPH0744052A (en) Fixing device
JPH0670731B2 (en) Cleaning device
JPH09197817A (en) Developing device
JPH06301319A (en) Cleaning device and electrostatic recorder using it
JP2001337557A (en) Lubricant coater and image forming device
JPS63300276A (en) Device for cleaning laser printer, copying machine, or the like
JPS61156272A (en) Cleaning device
JPH11102149A (en) Cleaning device and its cleaning brush driving method

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20040106