JPS59180572A - Fixing device - Google Patents

Fixing device

Info

Publication number
JPS59180572A
JPS59180572A JP5547283A JP5547283A JPS59180572A JP S59180572 A JPS59180572 A JP S59180572A JP 5547283 A JP5547283 A JP 5547283A JP 5547283 A JP5547283 A JP 5547283A JP S59180572 A JPS59180572 A JP S59180572A
Authority
JP
Japan
Prior art keywords
release agent
heat
roll
heat source
supply member
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.)
Pending
Application number
JP5547283A
Other languages
Japanese (ja)
Inventor
Ryuji Katsuno
龍司 勝野
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP5547283A priority Critical patent/JPS59180572A/en
Publication of JPS59180572A publication Critical patent/JPS59180572A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
    • G03G15/2025—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/20—Details of the fixing device or porcess
    • G03G2215/2093—Release agent handling devices

Abstract

PURPOSE:To form a fixing device where the supply of a release agent to a roll is made uniform to attain a stable fixing capacity for a long time, by providing a release agent supply member, where the release agent transpired by a heat source is included, around at least one of a heat roll and a pressure roll. CONSTITUTION:A cover 9 is provided around a heat roll 1 to cover its circumferential face, and a release agent supply member 10 is attached to the inside of the cover 9. The release agent is included in the release agent supply member 10 and is transpired by the heating action of a heat source 2. Since the release agent supply member 10 is heated by the heat source 2, a heat-resisting felt or the like superior in heat-resisting property is desirable as materials of this member 10. As the result of experiments, a dimethyl silicone oil is most suitable as the release agent. But, a silicone oil containing a vinyl radical, a phenyl radical, or the like may be used. The release agent included in the release agent supply member 10 is transpired by the heating action of the heat source 2 and is stuck to the circumferential face of the heat roll 1 by its transpiring action. Thus, a toner image 8 on a copy form 5 is prevented from being transferred to the circumferential face of the heat roll 1.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、複写機等に配設される定着装置、更に詳し
くは、一対のロールを用いてｌ・ナー像を加熱定着する
方式の定着装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fixing device installed in a copying machine, etc. Regarding equipment.

〔従来技術〕[Prior art]

・般に一１複写機等においては、熱可塑性樹脂に着色剤
としてカーボンブランク等を混合した０、１〜５０μｍ
程度の外径を有するトナーが広く使用されている。この
トナーは検電性を有する微細粒子であり、感光体上に現
像された後に複写用紙に転写、定着することによって、
トナー画像を形成すイ、ものである。・Generally, in copying machines etc., 0.1 to 50 μm thick thermoplastic resin mixed with carbon blank etc. as a coloring agent is used.
Toners having an outer diameter of about 100 mL are widely used. This toner is a fine particle that has electrodetection properties, and after being developed on a photoreceptor, it is transferred and fixed to copy paper.
This is the material that forms toner images.

複写用紙にトナーを定着する定着装置としζは、−・対
のロールで用紙を挟持、押圧し、更に、加熱することで
、複写用紙上にトナーを融着する加熱定着方式のものが
ある。そして、他の方式の定着装置に比較して消費電力
が少ないこと、定着部での用紙の走行性能が優れている
ので、紙詰りかないこと等の利点を有するために広（用
いられている。As a fixing device for fixing toner on copy paper, there is a heat fixing type in which the paper is sandwiched and pressed between a pair of rolls and then heated to fuse the toner onto the copy paper. Compared to other types of fixing devices, it consumes less power and has excellent paper running performance in the fixing section, so it is widely used because it has advantages such as no paper jams.

しかしながら、上記加熱定着方式のものにあっては、複
写用紙から−・部の１リーーがロールに転写し、このロ
ールの残留トナーが次の複写用紙に転写定着されるいわ
ゆるオフセット現象が生しるという欠点がある。However, with the heat fixing method described above, a so-called offset phenomenon occurs in which one copy of copy paper is transferred onto a roll, and the residual toner on this roll is transferred and fixed onto the next copy paper. There is a drawback.

そこで、例えば第１図に示すようにシリコーンオイル（
＃ｌ型剤として代表的に用いられる）をロール周面に塗
布することで、トナーの離型性を改良したものがある。Therefore, for example, as shown in Figure 1, silicone oil (
There is a type of toner in which the releasability of the toner is improved by coating the circumferential surface of the roll with #l type agent (typically used as a type agent).

図中ｆｉｌば内部に熱源（２）を内装し７た加熱ロール
であり、その周面には耐熱弾性体（３）を有している。In the figure, fil is a heating roll with a heat source (2) installed inside it, and has a heat-resistant elastic body (3) on its circumferential surface.

加熱ローカバ１）の下面には、加圧ロール（４）が圧接
され−どおり、その圧接部で複写用４１Ｅ　（５１を挾
持、押圧するものである。A pressure roll (4) is pressed against the lower surface of the heating low cover 1), and the pressure roll (4) holds and presses the copying material 41E (51).

加熱ロール（１）の周面にば、耐熱フｊ−ルト（６）が
接触状態−で取り付けられており、メイルタンク（７）
がら耐熱フェルｌ　１６）までシリコーンオイルを毛細
管現象を利用して浸透させ加熱ロール（１）の周面に塗
布するよ・）に構成されている。そして、シリコーンオ
イルの離型作用によっζ、複写用紙（５）上の１−リー
ー画像（８）が加熱ロール＋１．１に転写しないように
したものである。A heat-resistant felt (6) is attached to the circumferential surface of the heating roll (1) in contact with the mail tank (7).
The silicone oil is applied to the circumferential surface of the heating roll (1) by using capillary action to penetrate the silicone oil up to the heat-resistant felt (16). The releasing action of the silicone oil prevents the 1-Lee image (8) on the copy paper (5) from being transferred to the heating roll +1.1.

しかし、このような装置にあっては、オ・イルタンク（
７）や耐熱フェルト（６）、あるいはシリコーンオイル
を浸透させる部材が必要であり、装置が複雑且つ大型化
する。また、シリコーンオイルを毛細管現象によって耐
熱フェルト（６）に浸透させて加熱ロール（１）の周面
に塗布する構成であるために、シリコーンオイルを一定
量加熱ロール（１）に塗布することが困難であり、塗布
量が多ずぎると用紙を汚す恐れがあると共に、少なすぎ
ると加熱ロール（］）が耐り（）フェル１ベロ）との摩
擦によって摩耗するという問題があった。However, in such a device, the oil tank (
7), heat-resistant felt (6), or a member that allows silicone oil to penetrate, making the device complicated and large. In addition, because the silicone oil is configured to penetrate the heat-resistant felt (6) by capillary action and apply it to the circumferential surface of the heating roll (1), it is difficult to apply a certain amount of silicone oil to the heating roll (1). If the amount of coating is too large, there is a risk of staining the paper, and if the amount is too small, there is a problem that the heating roll ( ) will wear out due to friction with the roller ( ).

〔発明の目的〕[Purpose of the invention]

本発明は上記問題点を解消するためになされたもので、
構造が節単且っ小型で離型剤を加熱ロールもしくは加圧
ロールの周面に塗布することができ、更に上記ロールへ
の離型剤の供給を−・定にし　　゛長期に亘って安定し
た定着性能を得ることができる定着装置を提供すること
を目的としたものである。The present invention was made to solve the above problems, and
The structure is simple and compact, and the mold release agent can be applied to the circumferential surface of the heating roll or pressure roll, and the supply of the mold release agent to the roll is stable for a long period of time. The object of the present invention is to provide a fixing device that can obtain fixing performance.

〔発明の構成〕[Structure of the invention]

本発明は上記目的を達成するために、加熱ロールもしく
は加圧ロールの少くとも一方の周囲に、離型剤を含ませ
た離型剤供給部材を設け、この供給ｇ１１材を加熱して
離型剤を蒸散させ、この蒸１技したに１１型剤を上記ロ
ールの周面に付着させることで離型剤を塗布するように
したものである。In order to achieve the above object, the present invention provides a mold release agent supplying member containing a mold release agent around at least one of the heating roll or the pressure roll, and heats the supplied G11 material to release the mold. The mold release agent is applied by evaporating the mold release agent and adhering the mold release agent to the circumferential surface of the roll.

〔実施例〕〔Example〕

以丁、本発明を図面に示す実施例に基いて説明する。な
お、従来装置と同一・部分は同一符号を付している。The present invention will now be described based on embodiments shown in the drawings. Note that the same parts as those of the conventional device are given the same reference numerals.

第２図において、（１）は内部に熱源（２）を、周面に
は耐熱弾性体（３）を有する加熱ロールであり、加圧＋
１−ル（４）を圧接することで、複写用紙（５）を挾持
押圧するものである。そして、熱源（２）の加り１）作
用によって複写用紙（５）上のｌ・す−画像（８）を加
熱融着し定着するように機能するものである。In Fig. 2, (1) is a heating roll that has a heat source (2) inside and a heat-resistant elastic body (3) on the circumferential surface.
By pressing the 1-rule (4), the copy paper (5) is held and pressed. It functions to heat-fuse and fix the L/S image (8) on the copy paper (5) by the action of the heat source (2) (1).

加熱ロール（１）の周囲には、その円面を覆うようにカ
バー（９）を設けており、且つ、同カバー（９）の内１
μｍには離型剤供給部材（１０）を取りけりでいる。A cover (9) is provided around the heating roll (1) so as to cover its circular surface, and one of the covers (9)
A mold release agent supplying member (10) is provided at the micrometer.

離型剤供給部材（１０）には離型剤を含ませており、熱
源（２）の加熱作用によって蒸散するものである。The mold release agent supply member (10) contains a mold release agent, which is evaporated by the heating action of the heat source (2).

岡１１型剤供給部材（１０）は熱源（２）によって加熱
されるので、耐熱性に優れた耐熱フェルト等が望ましい
。Since the Oka 11 type agent supplying member (10) is heated by the heat source (2), it is desirable to use heat-resistant felt or the like with excellent heat resistance.

また実験の結果、離型剤としては、ジノチルシリコーン
オイルが最も適している。なお、これに限ることなくビ
ニル基、フェニル基等が含まれたシリコーンオイルでも
よいことがわかった。Also, as a result of experiments, dinotyl silicone oil is the most suitable mold release agent. It has been found that silicone oil containing vinyl groups, phenyl groups, etc. may be used without being limited to this.

離型剤供給部材（１０）に含ませた３１１型剤は、熱源
（２）の加熱作用によって蒸散し、その范散作用によっ
て加熱ロール（１）の周面に耐着する。これにより、複
写用紙（５）の上の１〜ナ一画像（８）が加熱ロール（
１）の周面に転写することを防止し、オフセット現像の
発生を防止する。The mold release agent 311 contained in the mold release agent supply member (10) is evaporated by the heating action of the heat source (2), and adheres to the circumferential surface of the heating roll (1) due to the evaporation action. As a result, images 1 to 4 (8) on the copy paper (5) are transferred to the heating roll (
1) Prevents transfer to the peripheral surface and prevents offset development from occurring.

また、離型剤を蒸散作用によって加熱ロール（１）の周
面に付着させる構成であるので、その塗布量を−・定に
することができ、離型剤が多すぎて用ｉ１Ｅを汚す恐れ
がない。更に、従来のように耐熱フ、エルトを直接加熱
ロール（１）の円面に接触させる構造ではないので、塗
布量が少すぎた場合に加熱ロール（１１か機械的な損傷
を受りるごともない。In addition, since the mold release agent is attached to the circumferential surface of the heating roll (1) by transpiration, the amount of application can be kept constant, and there is a risk that too much mold release agent will stain the surface of the heating roll (1). There is no. Furthermore, since the structure is not such that the heat-resistant sheet and elt are brought into direct contact with the circular surface of the heating roll (1) as in the past, there is a risk of mechanical damage to the heating roll (11) if the amount of coating is too small. No way.

本発明者の実験結果を下表に示す。、なお、離型剤とし
てジノチルシリコーンオイルを使用し、且つその粘度を
変えて実験した。The inventor's experimental results are shown in the table below. Experiments were conducted using dinotyl silicone oil as a mold release agent and varying its viscosity.

−上記表から明らかなように、加ｉ４％　ｌ：Ｊ−ルの
［ナー離型寿命は離型剤の粘度に依存し、粘度か低くな
るほど＆ｉｌ型寿命が長くなることがわかっ）こ。そし
て、粘度がｌ０Ｃ３で寿命１５万枚か肖られることがわ
かった。As is clear from the above table, the mold release life of the 4% l:J-leum depends on the viscosity of the mold release agent, and the lower the viscosity, the longer the mold life. It was found that the viscosity was 10C3 and the lifespan was 150,000 sheets.

第３図は他の例を示したもので、加圧ロール（４）を離
型剤供給部材（１０）で覆う場合の例を示したもの↑あ
る。加圧ローラ（４）は熱源を有していないので、カバ
ー（９）と離型剤供給部材（１０）との間にヒータ（１
１）を設げ、このヒータ（１１）の加熱作用によって離
型剤を范敗さ−１、加圧ロール（４）の周面にｆ′：１
着さ・けるものである。なお、これに限ることなく加り
１シロール（１）においても熱源（２）とヒータ（］１
）とを並用してもよいことはもちろんである。FIG. 3 shows another example in which the pressure roll (4) is covered with the release agent supply member (10). Since the pressure roller (4) does not have a heat source, a heater (1) is installed between the cover (9) and the release agent supply member (10).
1), the mold release agent is heated by the heating action of the heater (11), and f':1 is applied to the circumferential surface of the pressure roll (4).
It is something to wear and take off. In addition, the heat source (2) and the heater (]1 are not limited to this, and the heat source (2) and heater (]1
) may also be used in parallel.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、加熱ロールもしく
は加圧ロールの少くとも一方の周囲に、熱源によって蒸
散する離型剤を含ませた離型剤供給部材を設りたので、
簡単且つ小型の構造で離型剤を塗布することかでき、更
に離型剤を一定量塗布することが可能となって用紙の１
７テれやロールの摩耗を防止することができ、長期に亘
って安定した定着惺能を得ることができるという効果が
ある。As explained above, according to the present invention, a mold release agent supplying member containing a mold release agent that evaporates by a heat source is provided around at least one of the heating roll or the pressure roll.
It is possible to apply a mold release agent with a simple and compact structure, and it is also possible to apply a fixed amount of mold release agent, making it possible to
7. It is possible to prevent warping and roll wear, and to obtain stable fixing performance over a long period of time.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来例の定着装置の断面図、第２図は本発明の
一実施例の断面図、第３図は他の例の要部の断面図であ
る。 （Ｊ）；加熱１コール　　　（２）；熱源（３）；耐熱
弾性体　　　（４）；加圧ロール（５）；複写用紙　　
　　（６）；耐熱フェルト（力；オイルタンク　　（８
）　；　ｌ−ブーー両（象（９）；カバー　　　　　（
＋０１　；離型剤供給部材（＋１）　　；ヒータ 特許出願人　　　　冨士セロノクス株式会社代理人　　
手掘　益（はが２名） 第　　１　図 第　２　図 第　３　図FIG. 1 is a sectional view of a conventional fixing device, FIG. 2 is a sectional view of an embodiment of the present invention, and FIG. 3 is a sectional view of a main part of another example. (J); Heating 1 call (2); Heat source (3); Heat-resistant elastic body (4); Pressure roll (5); Copy paper
(6); Heat-resistant felt (force; oil tank (8)
) ; l-boo ryo (elephant (9); cover (
+01 ; Release agent supply member (+1) ; Heater patent applicant Fuji Seronox Co., Ltd. agent
Hand digging profit (2 people) Figure 1 Figure 2 Figure 3

Claims (1)

【特許請求の範囲】 １、加熱ロールもしくは加圧ロールの少くとも−・力の
周囲に、熱源によって蒸散する離型剤を含ませた離型剤
供給部材を設けたことを特徴とする定着装置。 ２、−上記熱源は、加熱ロール自体に配設された加熱定
着用の熱源である特許請求の範囲第１項記載の定着装置
。 ３、上記熱源は、離型剤供給部材に近接して設Ｌ３たヒ
ータである特許請求の範囲第１項記載の定着装置。[Claims] 1. A fixing device characterized in that a release agent supplying member containing a release agent that evaporates by a heat source is provided at least around the force of a heating roll or a pressure roll. . 2.- The fixing device according to claim 1, wherein the heat source is a heat source for heat fixing disposed on the heating roll itself. 3. The fixing device according to claim 1, wherein the heat source is a heater L3 installed close to the release agent supply member.
JP5547283A 1983-03-30 1983-03-30 Fixing device Pending JPS59180572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5547283A JPS59180572A (en) 1983-03-30 1983-03-30 Fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5547283A JPS59180572A (en) 1983-03-30 1983-03-30 Fixing device

Publications (1)

Publication Number Publication Date
JPS59180572A true JPS59180572A (en) 1984-10-13

Family

ID=12999543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5547283A Pending JPS59180572A (en) 1983-03-30 1983-03-30 Fixing device

Country Status (1)

Country Link
JP (1) JPS59180572A (en)

Similar Documents

Publication Publication Date Title
CA1067132A (en) Fuser roll having a non-uniform cross section
US5099289A (en) Electrophotographic wet-type image fixing unit for use with copy paper and transparencies
US4197445A (en) Roll fuser apparatus and system therefor
US4287280A (en) Release agent applicators and method of applying release agent emulsions upon fusers in electrostatic copiers
US4397936A (en) Method of fixing developed electrophotographic images uses oil absorbing smoothing roller
GB2053414A (en) Rollers
JPH04257885A (en) Release-agent handling apparatus
EP0183903B1 (en) Method and apparatus for applying a releasing agent
JPS59180572A (en) Fixing device
US3999510A (en) High surface energy cleaning roll
US4149485A (en) Apparatus for forming a uniform liquid film on a roller
JPH0379708B2 (en)
JP3224950B2 (en) Image forming device
JPH0310525Y2 (en)
JPS6148879A (en) Fixing device
JPS60144778A (en) Fixing device
JPH0816004A (en) Toner image fixing method in wet-type electrophotographic copying machine
JPS5937797Y2 (en) Fusing device
JPS6080884A (en) Fixing device
JPS60260078A (en) Mold releasing agent coating device
JPS6123183A (en) Fixing device
JPS6023869A (en) Fixing device
JPS5953875A (en) Paper crumpling preventing method of dry type electrophotographic copying machine
JPS59191079A (en) Fixing device
JPH0548203Y2 (en)