JPH0637423Y2 - Fixing device - Google Patents
Fixing deviceInfo
- Publication number
- JPH0637423Y2 JPH0637423Y2 JP1987032684U JP3268487U JPH0637423Y2 JP H0637423 Y2 JPH0637423 Y2 JP H0637423Y2 JP 1987032684 U JP1987032684 U JP 1987032684U JP 3268487 U JP3268487 U JP 3268487U JP H0637423 Y2 JPH0637423 Y2 JP H0637423Y2
- Authority
- JP
- Japan
- Prior art keywords
- fixing roller
- viscosity
- fixing
- web
- oil
- 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
Landscapes
- Coating Apparatus (AREA)
- Fixing For Electrophotography (AREA)
- Cleaning In Electrography (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Description
【考案の詳細な説明】 （技術分野） 本考案は電子写真複写装置等の加熱定着装置に関し、さ
らには該定着装置の定着ローラ表面のクリーニングと離
型剤の塗布に関する。TECHNICAL FIELD The present invention relates to a heat fixing device such as an electrophotographic copying machine, and more particularly to cleaning of a fixing roller surface of the fixing device and application of a release agent.
（従来技術） 加熱定着装置の加熱定着ローラは定着時のトナーオフセ
ツトによりその表面が汚れ、これをクリーニングする手
段が必要なことさらに複写紙およびトナーの定着ローラ
表面からの剥離性を向上させる目的で離型剤の塗布を必
要とすることなどから従来より不織布等を用いたウエブ
によるクリーニングおよび離型剤塗布が行われてきた、
ここに離型剤のウエブからの流出、およびローラ表面か
らの流動等を防止するために離型剤の粘性を高めること
が一般的であった。しかしながら離型剤の粘性を高める
ことは剥離性能を低下させることになる。また定着ロー
ラからの複写紙の剥離性をさらに向上もしくはジヤム紙
等の定着ローラへの巻付きを防止する目的で分離爪を補
助手段として用いる場合、分離爪への現像剤の付着が定
着後の画像を乱すことになり、かつ現像剤の付着量が多
量になると転写紙の搬送を妨げることになりジヤムにつ
ながる。特に複写紙上の画像濃度が高い場合に発生しや
すい問題であった。(Prior Art) The surface of a heat fixing roller of a heat fixing device is soiled by toner offset at the time of fixing, and a means for cleaning the surface is required. Further, the purpose is to improve the releasability of copy paper and toner from the surface of the fixing roller. Since it requires application of a release agent, cleaning and application of a release agent with a web using a non-woven fabric or the like have been conventionally performed.
Here, it is common to increase the viscosity of the release agent in order to prevent the release agent from flowing out from the web and flowing from the roller surface. However, increasing the viscosity of the release agent reduces the release performance. Further, when the separating claw is used as an auxiliary means for the purpose of further improving the releasability of the copy paper from the fixing roller or preventing wrapping of the jammed paper on the fixing roller, the adhesion of the developer to the separating claw may be If the image is disturbed and the amount of the developer adhered is large, the transfer sheet is hindered from being conveyed, which leads to a jam. In particular, this is a problem that tends to occur when the image density on the copy paper is high.
（考案の目的） 本考案は上記不都合を防止することを目的とする。(Object of the Invention) The present invention aims to prevent the above inconvenience.
（実施例） 第１図は本考案の概略を示す図である。定着ローラ１と
加圧ローラ２は矢印の方向に回転し複写紙３は入口ガイ
ド４を通過し定着される。ウエブ５は矢印の方向に進み
巻き取りローラ６に巻き取られる。ウエブ押えローラ７
によりウエブ５は定着ローラ１に圧接し、定着ローラ１
の表面をクリーニングするとともにウエブ５中の離型剤
を定着ローラ１の表面に塗布する。分離爪８は複写紙３
の定着ローラ１からの剥離を補助するとともに、ジヤム
紙の定着ローラ１への巻付きを防止するために定着ロー
ラ１の長手方向に複数個設けられている定着ローラ１を
通過した複写紙は排紙コロ９により排出される。第２図
は本考案の実施例であり、第１図を上方から見た図であ
る。(Embodiment) FIG. 1 is a schematic view of the present invention. The fixing roller 1 and the pressure roller 2 rotate in the direction of the arrow, and the copy paper 3 passes through the entrance guide 4 and is fixed. The web 5 advances in the direction of the arrow and is taken up by the take-up roller 6. Web pressing roller 7
The web 5 is pressed against the fixing roller 1 by the
The surface of the fixing roller 1 is cleaned and the release agent in the web 5 is applied to the surface of the fixing roller 1. Separation claw 8 is copy paper 3
Of the copy paper that has passed through the fixing rollers 1 provided in the longitudinal direction of the fixing roller 1 in order to assist the peeling of the jammed paper from the fixing roller 1 and prevent the jammed paper from being wound around the fixing roller 1. It is discharged by the paper roller 9. 2 is an embodiment of the present invention and is a view of FIG. 1 as seen from above.
ウエブ５には高粘度（10000cs）のシリコンオイル10
（信越化学工業（株）KF96H10000）が塗布されている。Silicone oil 10 with high viscosity (10000cs) for web 5
(Shin-Etsu Chemical Co., Ltd. KF96H10000) is applied.
また分離爪８に対応するウエブ上には低粘度（100cs）
のシリコンオイル（同KF96100）11が塗布されている。
高粘度シリコンオイルは従来例と同じく、ウエブからの
オイル流出等を防止しつつ定着ローラ１の表面クリーニ
ングと離型剤としてのシリコンオイル塗布を行う。低粘
性シリコンオイルは分離爪の接触面積に対応した小面積
であるために低粘性であるためのオイルの流出はない。
従って、低粘度オイルの離型性能を充分に発揮すること
ができ、低粘度オイル塗布部は複写紙上の画像濃度が高
い場合でも離型性能は良い。すなわち分離爪への依存度
が低下するために分離爪への現像剤の付着が少なく、画
像への悪影響およびジヤムへの心配はなくなった。Also, low viscosity (100cs) on the web corresponding to the separating claw 8.
Silicone oil (KF96100 of the same) 11 is applied.
As with the conventional example, the high-viscosity silicone oil performs surface cleaning of the fixing roller 1 and application of silicone oil as a release agent while preventing oil from flowing out from the web. Since the low-viscosity silicone oil has a small area corresponding to the contact area of the separating claw, the low-viscosity silicone oil does not flow out because of its low viscosity.
Therefore, the releasing performance of the low-viscosity oil can be sufficiently exhibited, and the releasing performance of the low-viscosity oil application portion is good even when the image density on the copy paper is high. That is, since the degree of dependence on the separating claw is reduced, the amount of the developer attached to the separating claw is small, and there is no fear of adverse effects on images and jams.
第３図は低粘度シリコンオイル11を高粘度シリコンオイ
ル10上に塗布したものである。In FIG. 3, low viscosity silicone oil 11 is applied onto high viscosity silicone oil 10.
第２図においては低粘度部と高粘度部のオーバーラツプ
を少なくするようなウエブへの塗布（含浸）方法である
が、第３図は高粘度を一面に塗布した後に低粘度部を追
加塗布したものである。FIG. 2 shows a method of coating (impregnating) a web so as to reduce the overlap between the low-viscosity portion and the high-viscosity portion. In FIG. 3, the low-viscosity portion is additionally coated after the high-viscosity coating. It is a thing.
いずれの方法もウエブへのオイル塗布工程および定着ロ
ーラの材質，温度およびトナー，複写紙の条件により選
択することができる。Either method can be selected according to the process of applying oil to the web, the material and temperature of the fixing roller, the toner, and the copy paper conditions.
（考案の効果） 以上のように本考案では特に複写紙上の画像濃度が高い
場合に定着器の分離爪による画像乱れおよび複写紙ジヤ
ムは、シリコンオイルを含浸したウエブに分離爪部に対
応してシリコンオイルの離型性を変化させる、すなわち
爪部のオイル粘性を低下させて離型性を向上させておく
ことにより防止できた。(Effect of the Invention) As described above, according to the present invention, when the image density on the copy paper is high, the image disturbance due to the separating claw of the fixing device and the copying paper jam correspond to the separating claw portion on the web impregnated with silicon oil. This can be prevented by changing the releasability of the silicone oil, that is, by reducing the oil viscosity of the claw portion and improving the releasability.
また低粘度オイルの塗布面積が小さいことおよび高粘度
オイルにより規制されることによりオイルの流出は防止
でき、低粘度オイル使用時の弊害がなく、爪部の離型性
を向上することができた。In addition, the application area of the low-viscosity oil is small and the high-viscosity oil regulates the oil, so that the oil can be prevented from flowing out, there is no harmful effect when the low-viscosity oil is used, and the releasing property of the claw portion can be improved. .
第１図は本考案の概略図。 第２図は本考案の一実施例を示す概略図。 第３図は本考案の別の実施例を示す概略図。 １……定着ローラ ２……加圧ローラ ５……ウエブ FIG. 1 is a schematic view of the present invention. FIG. 2 is a schematic view showing an embodiment of the present invention. FIG. 3 is a schematic view showing another embodiment of the present invention. 1 ... Fusing roller 2 ... Pressure roller 5 ... Web
フロントページの続き (56)参考文献 特開 昭60−129768（ＪＰ，Ａ) 特開 昭60−129769（ＪＰ，Ａ) 特開 昭60−135975（ＪＰ，Ａ) 特開 昭61−3168（ＪＰ，Ａ) 特開 昭61−36779（ＪＰ，Ａ) 実開 昭59−87064（ＪＰ，Ｕ) 実開 昭59−66258（ＪＰ，Ｕ) 実開 昭58−175552（ＪＰ，Ｕ) 実開 昭61−135357（ＪＰ，Ｕ) 実開 昭61−203761（ＪＰ，Ｕ) 実開 昭62−12756（ＪＰ，Ｕ) 実開 昭63−47370（ＪＰ，Ｕ)Continuation of the front page (56) Reference JP-A-60-129768 (JP, A) JP-A-60-129769 (JP, A) JP-A-60-135975 (JP, A) JP-A-61-1168 (JP , A) JP 61-36779 (JP, A) Actually opened 59-87064 (JP, U) Actually opened 59-66258 (JP, U) Actually opened 58-175552 (JP, U) Actually opened 61-135357 (JP, U) Actual opening 61-203761 (JP, U) Actual opening 62-12756 (JP, U) Actual opening 63-47370 (JP, U)
Claims (1)
ラと、この定着ローラに当接し像支持材を分離する分離
爪と、定着ローラ表面に離型液を塗布する塗布手段と、
を有する定着装置において、 上記塗布手段は定着ローラ表面の分離爪位置に対応する
部分には他の部分よりも低粘度の離型液を塗布すること
を特徴とする定着装置。1. A fixing roller for fixing a toner image on an image supporting material, a separating claw for abutting the fixing roller to separate the image supporting material, and a coating means for coating a releasing liquid on the surface of the fixing roller.
In the fixing device having the above-mentioned, the applying device applies a releasing liquid having a viscosity lower than that of other portions to a portion corresponding to the separation claw position on the surface of the fixing roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987032684U JPH0637423Y2 (en) | 1987-03-06 | 1987-03-06 | Fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987032684U JPH0637423Y2 (en) | 1987-03-06 | 1987-03-06 | Fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63140567U JPS63140567U (en) | 1988-09-16 |
| JPH0637423Y2 true JPH0637423Y2 (en) | 1994-09-28 |
Family
ID=30839598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987032684U Expired - Lifetime JPH0637423Y2 (en) | 1987-03-06 | 1987-03-06 | Fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0637423Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5321905B2 (en) * | 2009-09-01 | 2013-10-23 | 株式会社リコー | Fixing apparatus and image forming apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5966258U (en) * | 1982-10-25 | 1984-05-02 | キヤノン株式会社 | Fusing device |
| JPS5987064U (en) * | 1982-11-30 | 1984-06-12 | 京セラミタ株式会社 | Fusing device |
| JPH0656535B2 (en) * | 1983-12-17 | 1994-07-27 | キヤノン株式会社 | Fixing device |
-
1987
- 1987-03-06 JP JP1987032684U patent/JPH0637423Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63140567U (en) | 1988-09-16 |
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