JP2592943B2 - Cleaning sheet for rotating body for fixing - Google Patents
Cleaning sheet for rotating body for fixingInfo
- Publication number
- JP2592943B2 JP2592943B2 JP63316752A JP31675288A JP2592943B2 JP 2592943 B2 JP2592943 B2 JP 2592943B2 JP 63316752 A JP63316752 A JP 63316752A JP 31675288 A JP31675288 A JP 31675288A JP 2592943 B2 JP2592943 B2 JP 2592943B2
- Authority
- JP
- Japan
- Prior art keywords
- fixing
- cleaning sheet
- rotating body
- cleaning
- adhesive layer
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 ［発明の産業上の利用分野］ 本発明は未定着トナー像を支持する支持材と接触して
定着を行なうための定着用回転体をクリーニングするク
リーニング部材に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning member for cleaning a fixing rotator for fixing by contacting a supporting member supporting an unfixed toner image.
［従来技術］ 複写機、レーザービームプリンタ・マグネスタイラス
プリンタなどの画像形成装置では支持材上に未定着トナ
ー像を形成した後、定着用回転体、特には一対の回転体
により定着を行なうことが広く行なわれている。[Prior Art] In an image forming apparatus such as a copying machine, a laser beam printer, and a magnet stylus printer, after an unfixed toner image is formed on a supporting material, fixing is performed by a fixing rotator, particularly, a pair of rotators. Widely used.
この定着用回転体に付着したトナーや紙粉が支持材上
に転移して画質を劣化させることを防止するためフェル
ト、ウェブ等を当接させて定着用回転体のクリーニング
を行なっている。In order to prevent the toner and paper powder adhering to the fixing rotator from transferring onto the support material and deteriorating the image quality, the fixing rotator is cleaned by contacting a felt, a web or the like.
しかし、近年、更に装置の小型化、低コスト化が進む
につれクリーニング装置を無くしたいという要望が強ま
ってきている。However, in recent years, there has been an increasing demand for eliminating the cleaning device as the size and cost of the device have been further reduced.
［発明が解決する問題点］ このため定着用回転体表面の離型性の向上や静電的な
問題の改善等に努めているが、長期にわたって良好な画
質を保つことはできなかった。[Problems to be Solved by the Invention] For this reason, efforts have been made to improve the releasability of the surface of the fixing rotating body and to solve electrostatic problems, but it has not been possible to maintain good image quality over a long period of time.
特に一対の回転体では、未定着トナー像と接しない側
の回転体の汚れが大きく、支持材の裏汚れという問題が
発生していた。In particular, in the case of a pair of rotating bodies, the rotating body on the side not in contact with the unfixed toner image has a large stain, and a problem of back stain of the support material has occurred.
［問題点を解決する手段］ 上記問題点を解決するため本発明は、少なくとも定着
用回転体に搬送される際にトナーに対して粘着性を現わ
す粘着層を有し、この粘着層により定着用回転体をクリ
ーニングする定着用回転体用クリーニングシートにおい
て、前記粘着層は、クリーニングシートの搬送方向の長
さが定着用回転体の周長より大きく、クリーニングシー
トの搬送方向と交差する方向の全幅にわたって設けられ
ていることを特徴とするものである。[Means for Solving the Problems] In order to solve the above problems, the present invention has an adhesive layer which exhibits adhesiveness to toner at least when the toner is conveyed to a fixing rotating body, and the adhesive layer fixes the toner. In the fixing rotary member cleaning sheet for cleaning the rotary member for cleaning, the adhesive layer has a length in a conveying direction of the cleaning sheet larger than a circumferential length of the rotary member for fixing, and a total width in a direction intersecting the conveying direction of the cleaning sheet. , And is characterized in that:
［発明の実施例］ 以下本発明の実施例を説明する。Examples of the Invention Hereinafter, examples of the present invention will be described.
第１図は本発明の実施例のクリーニングシートの側面
図、第２図は第１図実施例の平面図である。FIG. 1 is a side view of a cleaning sheet according to an embodiment of the present invention, and FIG. 2 is a plan view of the embodiment of FIG.
１はシート基体で紙もしくは樹脂からなる。２はシー
ト基体１上に設けられた粘着層、矢示Ａはクリーニング
シート使用時の搬送方向を示している。1 is a sheet substrate made of paper or resin. Reference numeral 2 denotes an adhesive layer provided on the sheet substrate 1, and arrow A indicates a transport direction when a cleaning sheet is used.
粘着層２はシートの搬送方向端部を残して形成されて
いる。The adhesive layer 2 is formed leaving an end in the sheet conveying direction.
このためシートが定着用回転体に巻きつくことなく確
実に分離できる。For this reason, the sheet can be reliably separated without winding around the fixing rotating body.
また、このクリーニングシートは使用される装置の最
大通紙幅サイズで、且つ、搬送方向と交差する方向の全
幅にわたって設けられている。（即ち、最大通紙サイズ
A4ならA4巾に） このため搬送性に問題なく、且つ、問題となる汚れ全
体を除去することが可能である。The cleaning sheet has the maximum sheet passing width size of the apparatus to be used, and is provided over the entire width in the direction intersecting the transport direction. (That is, the maximum paper passing size
(For A4, A4 width) For this reason, there is no problem in transportability, and it is possible to remove the entire problematic dirt.
更には、搬送方向における粘着層の長さはクリーニン
グすべき回転体の周長より大である。Further, the length of the adhesive layer in the transport direction is longer than the circumference of the rotating body to be cleaned.
このため、クリーニングシート１枚の通紙で回転体全
周にわたって確実にクリーニングできる。For this reason, it is possible to reliably clean the entire circumference of the rotating body by passing one cleaning sheet.
次に本発明の別の実施例のクリーニングシートについ
て詳細に説明する。Next, a cleaning sheet according to another embodiment of the present invention will be described in detail.
［実施例１］ 220mm×300mm、厚さ100μｍのポリエチレンテレフタ
レートシート上に厚さが５μｍとなる様に、室温でも粘
着性を有する水性粘着剤（アクリル系エマルジョン）−
（株）スリーボンド製スリーボンド＃1549−を220mm×2
50mmの領域で両面に塗布し、40℃で１時間乾燥させ、ク
リーニングシートを作製した。電子写真装置において、
トナーや紙粉により表面が汚れた状態の定着装置内の定
着用ローラ（定着ローラ及び加圧ローラ）間を上記のク
リーニングシートを通過させたところ両ローラの表面の
汚れは、全て除去され使用前の状態まで回復した。[Example 1] An aqueous pressure-sensitive adhesive (acrylic emulsion) having tackiness even at room temperature so that the thickness becomes 5 µm on a polyethylene terephthalate sheet having a size of 220 mm × 300 mm and a thickness of 100 µm-
220 mm x 2 from Three Bond # 1549- manufactured by Three Bond Co., Ltd.
It was applied on both sides in a 50 mm area and dried at 40 ° C. for 1 hour to prepare a cleaning sheet. In electrophotographic equipment,
When the above-mentioned cleaning sheet is passed between the fixing rollers (fixing roller and pressure roller) in the fixing device in a state where the surface is soiled by toner and paper dust, all the surface dirt on both rollers is removed and before use. It recovered to the state of.
［実施例２］ 80g/m2A4サイズ用紙の片面にエチレン−酢酸ビニル共
重合体を厚さ５μｍとなる様に塗布してクリーニングシ
ートを得た。熱可塑性樹脂であるエチレン−酢酸ビニル
共重合体は、150℃における溶融粘度が１×104ボイズの
ものを用い、これを酢酸エチレンに溶解し紙上に塗布し
た後、酢酸エチレンを揮発除去した。Example 2 A cleaning sheet was obtained by applying an ethylene-vinyl acetate copolymer to one side of 80 g / m 2 A4 size paper so as to have a thickness of 5 μm. An ethylene-vinyl acetate copolymer having a melt viscosity of 1 × 10 4 voids at 150 ° C. was used as a thermoplastic resin. This was dissolved in ethylene acetate and coated on paper, and then the ethylene acetate was volatilized and removed.
さらに、その上に耐熱性の離型シートをのせ150℃に
てエチレン−酢酸ビニル共重合体を加熱溶融させエチレ
ン−酢酸ビニル共重合体コートクリーニングシートを作
製した。Further, a heat-resistant release sheet was placed thereon, and the ethylene-vinyl acetate copolymer was heated and melted at 150 ° C. to prepare an ethylene-vinyl acetate copolymer coated cleaning sheet.
電子写真装置の定着装置の熱定着ローラにおいて、定
着ローラは、外径20mm、肉厚2mmの円筒状アルミ合金製
芯金の表面にPFA樹脂をコーティングしたものでありま
た加圧ローラは外径10mmのステンレス芯金上にシリコー
ンゴムを弾性層として設けた外径20mmのものである。該
定着ローラと該加圧ローラは所定の締圧60Kg重で圧接さ
れている。また、これにはクリーニング装置に設けられ
ていない。定着ローラは約150℃に維持されている。In the heat fixing roller of the fixing device of the electrophotographic apparatus, the fixing roller is a cylindrical aluminum alloy core bar having an outer diameter of 20 mm and a thickness of 2 mm coated with PFA resin, and the pressing roller has an outer diameter of 10 mm. Of 20 mm in outer diameter provided with silicone rubber as an elastic layer on a stainless steel cored bar. The fixing roller and the pressure roller are pressed against each other with a predetermined tightening pressure of 60 kg. Also, it is not provided in the cleaning device. The fixing roller is maintained at about 150 ° C.
所定の枚数を使用すると加圧ローラ表面の広範囲に紙
粉及びトナーが付着してしまい、搬送性や定着性が極度
に悪化する。この状態において、上記のクリーニングシ
ートのコーティング面を加圧ローラ側に向けてローラ間
を通過させたところ、加圧ローラ表面の付着紙粉やトナ
ーは全てクリーニングシート面に移行し、加圧ローラの
表面の汚れはすべて除去され使用初期の状態まで回復し
た。When a predetermined number of sheets are used, paper dust and toner adhere to a wide area on the surface of the pressure roller, and the transportability and the fixing property are extremely deteriorated. In this state, when the coating surface of the cleaning sheet was passed between the rollers with the coating surface facing the pressure roller, all the paper dust and toner attached to the surface of the pressure roller were transferred to the cleaning sheet surface, and All dirt on the surface was removed and recovered to the initial state of use.
この実施例のクリーニングシートは室温では粘着性は
有しておらず、定着ローラにより加熱されることにより
粘着性が得られる。The cleaning sheet of this embodiment has no tackiness at room temperature, and can be tackified by being heated by a fixing roller.
このため、定着ローラへ搬送中に粘着層と接する部材
を有する装置に使用でき、特に、転写装置により感光体
上の未定着トナー像を支持材に転写する転写型の画像形
成装置に特に有効である。Therefore, it can be used for an apparatus having a member that comes into contact with the adhesive layer during conveyance to the fixing roller, and is particularly effective for a transfer-type image forming apparatus that transfers an unfixed toner image on a photoconductor to a supporting material by a transfer device. is there.
また、この場合粘着層の材料としては画像形成が装置
のトナーと同一のものがオフセットトナーのクリーニン
グ性から最も好ましい。In this case, as the material of the adhesive layer, the same material as that of the toner of the apparatus for image formation is most preferable from the viewpoint of the cleaning property of the offset toner.
［発明の効果］ 以上本発明によれば、クリーニングシートによりオフ
セットトナー等を除去するため定着用回転体に特別なク
リーニング機構を設けることなく、長期にわたって良好
な定着画像を得ることができる。[Effects of the Invention] As described above, according to the present invention, a good fixed image can be obtained for a long period of time without providing a special cleaning mechanism on a fixing rotating body for removing offset toner and the like using a cleaning sheet.
第１図は本発明の実施例の側面図、 第２図は第１図実施例の上面図である。 １……シート基台 ２……粘着層 FIG. 1 is a side view of an embodiment of the present invention, and FIG. 2 is a top view of the embodiment of FIG. 1 ... sheet base 2 ... adhesive layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 友行 洋二 東京都大田区下丸子３丁目30番２号 キ ヤノン株式会社内 (56)参考文献 特開 昭63−266473（ＪＰ，Ａ) 特開 昭61−231577（ＪＰ，Ａ) 特開 昭60−196787（ＪＰ，Ａ) 特開 昭58−209773（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoji Tomoyuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (56) References JP-A-63-266473 (JP, A) JP-A Sho 61-231577 (JP, A) JP-A-60-196787 (JP, A) JP-A-58-209773 (JP, A)
Claims (1)
トナーに対して粘着性を現わす粘着層を有し、この粘着
層により定着用回転体をクリーニングする定着用回転体
用クリーニングシートにおいて、 前記粘着層は、クリーニングシートの搬送方向の長さが
定着用回転体の周長より大きく、クリーニングシートの
搬送方向と交差する方向の全幅にわたって設けられてい
ることを特徴とする定着用回転体用クリーニングシー
ト。1. A fixing rotating body cleaning sheet having an adhesive layer exhibiting adhesiveness to toner at least when conveyed to the fixing rotating body, and cleaning the fixing rotating body with the adhesive layer. Wherein the pressure-sensitive adhesive layer has a length in a conveying direction of the cleaning sheet larger than a circumferential length of the fixing rotating body, and is provided over the entire width in a direction intersecting the conveying direction of the cleaning sheet. Cleaning sheet.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63316752A JP2592943B2 (en) | 1988-12-14 | 1988-12-14 | Cleaning sheet for rotating body for fixing |
| DE68922708T DE68922708T2 (en) | 1988-12-14 | 1989-12-14 | Cleaning sheet for rotatable fixing member and imaging device with rotatable fixing member. |
| EP89123155A EP0373651B1 (en) | 1988-12-14 | 1989-12-14 | Cleaning sheet for fixating rotational member and image forming apparatus having fixating rotational member |
| US07/815,853 US5138390A (en) | 1988-12-14 | 1991-12-31 | Cleaning sheet for fixating rotational member and image forming apparatus having fixating rotational member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63316752A JP2592943B2 (en) | 1988-12-14 | 1988-12-14 | Cleaning sheet for rotating body for fixing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02160275A JPH02160275A (en) | 1990-06-20 |
| JP2592943B2 true JP2592943B2 (en) | 1997-03-19 |
Family
ID=18080524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63316752A Expired - Lifetime JP2592943B2 (en) | 1988-12-14 | 1988-12-14 | Cleaning sheet for rotating body for fixing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2592943B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4950626B2 (en) * | 2006-11-09 | 2012-06-13 | キヤノン株式会社 | Image forming apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60196787A (en) * | 1984-03-21 | 1985-10-05 | Fuji Xerox Co Ltd | Fixing device |
| JPS61231577A (en) * | 1985-04-05 | 1986-10-15 | Canon Inc | Sheet conveying and controlling device for recording device |
| JPS63266473A (en) * | 1987-04-24 | 1988-11-02 | Mita Ind Co Ltd | Cleaning method for fixing device |
-
1988
- 1988-12-14 JP JP63316752A patent/JP2592943B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02160275A (en) | 1990-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081219 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term |