JP2535330B2 - Cleaning method and apparatus thereof - Google Patents
Cleaning method and apparatus thereofInfo
- Publication number
- JP2535330B2 JP2535330B2 JP61130305A JP13030586A JP2535330B2 JP 2535330 B2 JP2535330 B2 JP 2535330B2 JP 61130305 A JP61130305 A JP 61130305A JP 13030586 A JP13030586 A JP 13030586A JP 2535330 B2 JP2535330 B2 JP 2535330B2
- Authority
- JP
- Japan
- Prior art keywords
- drum
- cleaned
- toner
- electret fiber
- cleaning
- 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
- 238000004140 cleaning Methods 0.000 title claims description 29
- 238000000034 method Methods 0.000 title claims description 13
- 239000000835 fiber Substances 0.000 claims description 34
- 238000004804 winding Methods 0.000 claims description 4
- -1 polypropylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000004750 melt-blown nonwoven Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Nonwoven Fabrics (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、電子写真感光体ドラムまたは静電プリンタ
ー誘電体ドラムなどのドラム面の残存トナーを完全に清
掃するクリーニング方法およびその装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning method and apparatus for completely cleaning residual toner on a drum surface of an electrophotographic photosensitive drum or an electrostatic printer dielectric drum.
［従来技術］ 従来、複写機のクリーニングには、特開昭54−63839
号公報に記載のごとく、清掃用ペーパーが用いられ、ト
ナーを物理的に拭き取って除去していたが、この方法で
は電気的にドラムに強固に付着したトナーを完全に清掃
することは困難であった。[Prior Art] Japanese Patent Laid-Open No. 54-63839 discloses cleaning of a copying machine.
As described in the publication, a cleaning paper is used and the toner is physically wiped off to remove it. However, it is difficult to completely clean the toner electrically adhered firmly to the drum by this method. It was
［本発明が解決しようとする問題点］ 本発明は、上記欠点を解消するべく鋭意検討した結
果、得られたものであって、電気的作用でトナーを吸着
するエレクトレット繊維シートを用いたクリーニング方
法およびその装置を提供するものである。[Problems to be Solved by the Present Invention] The present invention has been obtained as a result of extensive studies to solve the above-mentioned drawbacks, and is a cleaning method using an electret fiber sheet that attracts toner by an electric action. And a device therefor.
［問題点を解決するための手段］ 上記課題を解決する本発明のクリーニング方法は、次
の構成を有する。すなわち、被清掃ドラム、平均繊度10
μｍ以下、表面電荷密度７×10-11クーロン/cm2以上の
エレクトレット繊維不織シートを走行させる供給ローラ
および巻取ローラを少なくとも１組として配設し、該供
給ローラと巻取ローラの間には該エレクトレット繊維不
織シートが被清掃ドラム面と接圧自在となる機構を有す
る接触体を設け、かつ前記エレクトレット繊維不織シー
トはその表面極性が前記被清掃ドラム面のトナー極性と
異なるようにして用いて、該被清掃ドラム面のトナーを
除去することを特徴とするクリーニング方法である。[Means for Solving Problems] The cleaning method of the present invention for solving the above problems has the following configuration. That is, the drum to be cleaned, average fineness 10
At least one set of a feed roller and a take-up roller for running an electret fiber non-woven sheet having a surface charge density of 7 × 10 -11 coulomb / cm 2 or more is arranged between the feed roller and the take-up roller. Is provided with a contact body having a mechanism for allowing the electret fiber non-woven sheet to come into contact with the surface of the drum to be cleaned, and the electret fiber non-woven sheet has a surface polarity different from that of the toner on the surface of the drum to be cleaned. Is used to remove the toner on the surface of the drum to be cleaned.
また、本発明のクリーニング装置は、次の構成を有す
る。Further, the cleaning device of the present invention has the following configuration.
すなわち、被清掃ドラム、平均繊度10μｍ以下、表面
電荷密度７×10-11クーロン/cm2以上のエレクトレット
繊維不織シートを走行させる供給ローラおよび巻取ロー
ラを少なくとも１組として配設し、該供給ローラと巻取
ローラの間には前記エレクトレット繊維不織シートが被
清掃ドラム面と接圧自在となる機構を有する接触体を設
けてなる被清掃ドラム面のトナーのクリーニング装置で
ある。That is, at least one set of a drum to be cleaned, a supply roller for running an electret fiber non-woven sheet having an average fineness of 10 μm or less and a surface charge density of 7 × 10 −11 coulomb / cm 2 or more and a winding roller is provided, and the supply is performed. A cleaning device for toner on the surface of the drum to be cleaned, which is provided with a contact body having a mechanism for allowing the non-woven electret fiber sheet to come into contact with the surface of the drum to be cleaned between the roller and the winding roller.
以下本発明を詳細に説明する。 The present invention will be described in detail below.
本発明は、電子写真感光体ドラムまたは静電プリンタ
ー誘電体ドラムなどの被清掃ドラム面に付着したトナー
をエレクトレット繊維シートで電気的な作用を利用して
除去清掃するものである。The present invention is to remove and clean the toner adhering to the surface of a drum to be cleaned such as an electrophotographic photosensitive drum or an electrostatic printer dielectric drum by using an electret fiber sheet by using an electric action.
第１図は、本発明のクリーニング方法に適した装置の
実施態様例を表わす。FIG. 1 shows an example of an embodiment of an apparatus suitable for the cleaning method of the present invention.
第１図において、１は被清掃ドラム、2,2′はトナ
ー、３はエレクトレット繊維シート、４は接触体（ロー
ラ）、５は供給ローラ、６は巻取ローラ、７は面圧調整
機構、８は押えローラである。In FIG. 1, 1 is a drum to be cleaned, 2, 2'is toner, 3 is an electret fiber sheet, 4 is a contact body (roller), 5 is a supply roller, 6 is a take-up roller, 7 is a surface pressure adjusting mechanism, Reference numeral 8 is a pressing roller.
供給ローラ５から送り出されたエレクトレット繊維シ
ート３は矢印Ａ方向に進行し、接触体４を介して、矢印
Ｂ方向に進行する被清掃ドラム１に接圧する。この接触
体４の接圧は電磁弁などと接続し、被清掃ドラム１に対
して接圧自在に調整できるようになっている。特にトナ
ーのクリーニングに際し、接圧調整はトナーの除去効果
に大きく影響する。被清掃ドラム１に付着しているトナ
ー２はエレクトレット繊維シート３に電気的作用で吸着
する。吸着されたトナー２′は矢印Ａ′方向に進行する
エレクトレット繊維シート３で運ばれてローラ６に巻き
取られ、被清掃ドラム１面のトナー２は全て除去清掃さ
れる。なお、供給ローラと巻取ローラの駆動は、連続的
あるいは間欠的に行なうことができる。The electret fiber sheet 3 delivered from the supply roller 5 advances in the direction of arrow A, and comes into contact with the cleaning drum 1 that advances in the direction of arrow B via the contact body 4. The contact pressure of the contact body 4 is connected to an electromagnetic valve or the like so that the contact body 4 can be contact pressure adjusted freely. Especially when cleaning the toner, the contact pressure adjustment greatly affects the toner removing effect. The toner 2 attached to the cleaning drum 1 is attracted to the electret fiber sheet 3 by an electric action. The attracted toner 2'is carried by the electret fiber sheet 3 which advances in the direction of the arrow A'and is wound up by the roller 6, so that all the toner 2 on the surface of the cleaning target drum 1 is removed and cleaned. The supply roller and the take-up roller can be driven continuously or intermittently.
エレクトレット繊維シートの表面極性は、トナー極性
の反対極性となるように配置するのが効率的な清掃方法
といえる。It can be said that an efficient cleaning method is to arrange the electret fiber sheet so that the surface polarity is opposite to the toner polarity.
エレクトレット繊維シートの電気分極の向きは、ラン
ダムでもよいが、好ましくは第２図に示すように配向分
極したものの方が、表面電荷密度が大きく、また正負の
表面極性を利用できるので好ましい。その表面電荷の様
子は第３図のごとくである。The direction of electric polarization of the electret fiber sheet may be random, but it is preferable that the electret fiber sheet is oriented and polarized as shown in FIG. 2 because the surface charge density is large and the positive and negative surface polarities can be utilized. The surface charges are as shown in FIG.
エレクトレット繊維シートの表面電荷密度は、清掃性
から７×10-11クーロン/cm2以上であることが重要であ
る。It is important that the surface charge density of the electret fiber sheet is 7 × 10 −11 coulomb / cm 2 or more from the viewpoint of cleanability .
エレクトレット繊維シートの形態は、不織シート、
紙、織物、編物など用いることができる。特に不織シー
トは、トナーのホールディング効果がよく、効果的であ
る。The form of the electret fiber sheet is a non-woven sheet,
Paper, woven fabric, knitted fabric, etc. can be used. In particular, the non-woven sheet has a good toner holding effect and is effective.
エレクトレット繊維シートの平均繊維径は、複写ドラ
ム面をきずつけないようにするため、細い方が好まし
く、10μｍ以下であることが重要である。さらにまた細
繊度は、トナーホールディングにも、また、表面電荷密
度の向上による吸着性付与にも効果的である。The average fiber diameter of the electret fiber sheet is preferably thin so that the surface of the copying drum is not scratched, and it is important that the average fiber diameter is 10 μm or less. Furthermore, the fineness is effective for toner holding and also for imparting adsorptivity by improving the surface charge density.
これらの条件を満足するため特にエレクトレット繊維
シートとして、メルトブロー不織布からなるエレクトレ
ット不織シートは最も好ましい性質を有する。In order to satisfy these conditions, the electret nonwoven sheet made of meltblown nonwoven fabric has the most preferable properties, especially as an electret fiber sheet.
エレクトレット繊維シートに用いる素材は、体積抵抗
率が1012Ω・cm以上のものが好ましく、例えば、ポリプ
ロピレン、ポリエチレン、ポリスチレン、ポリエステ
ル、ポリカーボネート、ポリアクリロニトリル、弗素系
樹脂、ビニール樹脂からなる繊維などを用いることがで
きる。The material used for the electret fiber sheet preferably has a volume resistivity of 10 12 Ω · cm or more, and for example, fibers made of polypropylene, polyethylene, polystyrene, polyester, polycarbonate, polyacrylonitrile, fluorine resin, vinyl resin, etc. are used. be able to.
本クリーニング装置は、ブラシ法、交流コロナによる
除電、清掃法など、他クリーニング法と併用して用いれ
ばさらに効果がある。The present cleaning device is further effective when used in combination with other cleaning methods such as a brush method, charge removal by AC corona, and a cleaning method.
表面電荷密度の測定は、第４図に示す装置を用いた。
エレクトレット繊維シート試料９をアース電極10と上面
の金属電極11との間にはさみ、金属電極11に静電誘導原
理で誘起させて、コンデンサー12にためた電荷を電位計
13で測定して求める。The device shown in FIG. 4 was used to measure the surface charge density.
The electret fiber sheet sample 9 is sandwiched between the earth electrode 10 and the metal electrode 11 on the upper surface and induced by the electrostatic induction principle in the metal electrode 11, and the electric charge accumulated in the capacitor 12 is measured by an electrometer.
Measure with 13 and obtain.
その計算式は下式の通りである。 The calculation formula is as follows.
表面電荷密度（クーロン/cm2）＝Ｃ×V/S C:コンデンサー（ファラッド） V:電位（ボルト） S:試料面積（cm2） ［実施例］ 実施例１ クリーニング方法として第１図に示す装置を用いて行
なった。そこでエレクトレット繊維シートとして、目付
20g/m2、平均繊維径３μｍのポリプロピレンメルトブロ
ー不織シートを用いた。Surface charge density (Coulomb / cm 2 ) = C × V / SC: Capacitor (farad) V: Potential (volt) S: Sample area (cm 2 ) [Example] Example 1 The apparatus shown in FIG. 1 as a cleaning method Was performed using. Therefore, as an electret fiber sheet,
A polypropylene meltblown non-woven sheet having a weight of 20 g / m 2 and an average fiber diameter of 3 μm was used.
この表面電荷密度は、表面−極性で7.5×10-10クーロ
ン/cm2、裏面＋極性で6.1×10-10クーロン/cm2であっ
た。The surface charge density was 7.5 × 10 −10 coulomb / cm 2 for front-polarity and 6.1 × 10 −10 coulomb / cm 2 for backside + polarity.
本エレクトレット繊維シートの＋極性面を複写ドラム
面に向けて配置し、−極性のトナーを用いてテストし
た。The electret fiber sheet was placed with the positive polarity side facing the copy drum surface and tested with negative polarity toner.
テストは、従来の清掃ペーパーと比較して行なった。 The test was performed in comparison with a conventional cleaning paper.
クリーニング後の清掃材の汚れ度合、および電子写真
感光体ドラム面のクリーニング度合を観察した結果、明
らかに本発明のエレクトレット繊維シートを用いた方法
および装置が優れた効果を示した。As a result of observing the degree of dirt of the cleaning material after cleaning and the degree of cleaning of the electrophotographic photosensitive drum surface, the method and apparatus using the electret fiber sheet of the present invention clearly showed excellent effects.
［発明の効果］ 本発明は、被清掃ドラム表面のトナーを機械的除去の
みならず、エレクトレット繊維シートの電気的作用によ
って、除去、清掃するため、完全なクリーニングができ
る。EFFECTS OF THE INVENTION The present invention not only mechanically removes the toner on the surface of the drum to be cleaned, but also removes and cleans it by the electrical action of the electret fiber sheet, so that complete cleaning can be performed.
しかも、該ドラムとの接触圧を少なくすることができ
るため、ドラム面の損失を極力少なくすることができ、
複写機の寿命を延命させる効果がある。Moreover, since the contact pressure with the drum can be reduced, the loss on the drum surface can be minimized,
This has the effect of extending the life of the copying machine.
第１図は本発明に係るクリーニング装置の実施態様例を
示す説明図、第２図は電気分極の向きを示す模式図、第
３図は表面電荷を示す模式図、第４図は表面電荷密度の
測定装置を示す模式図である。 1:被清掃ドラム、2:トナー、3:エレクトレット繊維シー
ト、4:接触体、7:面圧調整機構FIG. 1 is an explanatory view showing an example of an embodiment of a cleaning device according to the present invention, FIG. 2 is a schematic view showing the direction of electric polarization, FIG. 3 is a schematic view showing surface charges, and FIG. 4 is a surface charge density. It is a schematic diagram which shows the measuring device of. 1: Drum to be cleaned, 2: Toner, 3: Electret fiber sheet, 4: Contact body, 7: Surface pressure adjustment mechanism
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−112188（ＪＰ，Ａ) 特開 昭60−263184（ＪＰ，Ａ) 特開 昭54−131940（ＪＰ，Ａ) 特開 昭55−64272（ＪＰ，Ａ) 実開 昭56−30343（ＪＰ，Ｕ) 実開 昭57−57464（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP 62-112188 (JP, A) JP 60-263184 (JP, A) JP 54-131940 (JP, A) JP 55- 64272 (JP, A) Actual opening 56-30343 (JP, U) Actual opening 57-57464 (JP, U)
Claims (3)
電荷密度７×10-11クーロン/cm2以上のエレクトレット
繊維不織シートを走行させる供給ローラおよび巻取ロー
ラを少なくとも１組として配設し、該供給ローラと巻取
ローラの間には該エレクトレット繊維不織シートが被清
掃ドラム面と接圧自在となる機構を有する接触体を設
け、かつ前記エレクトレット繊維不織シートはその表面
極性が前記被清掃ドラム面のトナー極性と異なるように
して用いて、該被清掃ドラム面のトナーを除去すること
を特徴とするクリーニング方法。1. At least one set of a cleaning drum, a supply roller and a winding roller for running an electret fiber non-woven sheet having an average fineness of 10 μm or less and a surface charge density of 7 × 10 −11 Coulomb / cm 2 or more are provided. A contact member having a mechanism for allowing the electret fiber non-woven sheet to come into contact with the surface of the drum to be cleaned between the supply roller and the take-up roller, and the electret fiber non-woven sheet has the surface polarity described above. A cleaning method, wherein the toner on the surface of the drum to be cleaned is used in a manner different from that of the toner on the surface of the drum to be cleaned to remove the toner on the surface of the drum to be cleaned.
電荷密度７×10-11クーロン/cm2以上のエレクトレット
繊維不織シートを走行させる供給ローラおよび巻取ロー
ラを少なくとも１組として配設し、該供給ローラと巻取
ローラの間には前記エレクトレット繊維不織シートが被
清掃ドラム面と接圧自在となる機構を有する接触体を設
けてなる被清掃ドラム面のトナーのクリーニング装置。2. A drum to be cleaned, at least one set of a supply roller and a winding roller for running an electret fiber non-woven sheet having an average fineness of 10 μm or less and a surface charge density of 7 × 10 −11 Coulomb / cm 2 or more are provided. A toner cleaning device for cleaning the surface of the drum to be cleaned, which is provided between the supply roller and the take-up roller with a contact body having a mechanism for allowing the electret fiber non-woven sheet to come into contact with the surface of the drum to be cleaned.
ドラムである特許請求の範囲第（２）項記載のクリーニ
ング装置。3. The cleaning device according to claim 2, wherein the drum to be cleaned is a photosensitive drum or a dielectric drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61130305A JP2535330B2 (en) | 1986-06-06 | 1986-06-06 | Cleaning method and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61130305A JP2535330B2 (en) | 1986-06-06 | 1986-06-06 | Cleaning method and apparatus thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62287280A JPS62287280A (en) | 1987-12-14 |
| JP2535330B2 true JP2535330B2 (en) | 1996-09-18 |
Family
ID=15031141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61130305A Expired - Lifetime JP2535330B2 (en) | 1986-06-06 | 1986-06-06 | Cleaning method and apparatus thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2535330B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02168484A (en) * | 1988-12-22 | 1990-06-28 | Mitsui Petrochem Ind Ltd | Cleaning material and cleaning method for surface of optical disk |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62112188A (en) * | 1985-11-11 | 1987-05-23 | Japan Vilene Co Ltd | Photosensitive drum cleaner |
-
1986
- 1986-06-06 JP JP61130305A patent/JP2535330B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62287280A (en) | 1987-12-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |