JPH01976A - Transfer fixing device - Google Patents
Transfer fixing deviceInfo
- Publication number
- JPH01976A JPH01976A JP62-155964A JP15596487A JPH01976A JP H01976 A JPH01976 A JP H01976A JP 15596487 A JP15596487 A JP 15596487A JP H01976 A JPH01976 A JP H01976A
- Authority
- JP
- Japan
- Prior art keywords
- recording paper
- paper
- intermediate transfer
- roller
- toner
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔概要〕
イ象保持体上のトナー像を中間転写体に転写し、次いで
熱ローラとの間に挾持した記録紙に溶融定着する転写定
着装置に関し、定着後の記録紙のカールの防止、及び定
着性の向上を図ることを目的とし、熱ローラを通過し九
記鎌紙を、中間記鐘体＠力為ら加熱する熱ローラを設け
て構成する。Detailed Description of the Invention [Summary] A transfer and fixing device that transfers a toner image on an image holder to an intermediate transfer member, and then melts and fixes the toner image on a recording paper held between a heat roller and the recording after fixing. In order to prevent curling of the paper and improve fixing properties, a heat roller is provided to heat the Kuki Kama paper as it passes through the heat roller.
本発明は、電子厚嶌方式、静電記碌方式を用いて像保持
体上に形成されたトナー像を、中間転写体に転写した後
、熱ローラとの間に挾持した記録紙に溶融定着する転写
定着装置に関する。In the present invention, a toner image formed on an image carrier using an electronic Atsushima method or an electrostatic recording method is transferred to an intermediate transfer member, and then melted and fixed on a recording paper held between a heat roller. The present invention relates to a transfer fixing device.
転写定着装置は、感光体ドラム等の偉保持体−ヒに形成
し九トナー儂を記録体に乱れを生じることなく転写し、
定着させることが要求される。The transfer/fixing device transfers toner onto a recording medium without causing any disturbance by forming the toner on a holding body such as a photoreceptor drum.
It is required to be established.
従来、トナー像はその上に重ねられた記録体背面からコ
四す放電、バイアス電圧等により電荷を与え、静電的く
記録体側に転写していた。Conventionally, toner images have been electrostatically transferred to the recording medium by being charged with electric discharge, bias voltage, etc. from the back surface of the recording medium overlaid thereon.
しかし、静電的に転写する方式では、転写の際に電荷の
乱れが伴い、転写したトナー像の周囲にチリが生じると
ｈう欠点があった。However, the electrostatic transfer method has the disadvantage that charge disturbance occurs during transfer and dust is generated around the transferred toner image.
上記欠点く鑑み、例えば特公昭４６−４１６７９号。In view of the above drawbacks, for example, Japanese Patent Publication No. 46-41679.
特公昭４８−２２７６３号、特公昭５７−２０６３２号
等において、トナー像全中間転写体【圧接させて転写し
た後、中間転写体上のトナー像を記録体に転写定着する
方法が機業されている。かかる方法によれば静電的に転
写する場合と異なりトナー像を乱れなく記録体に転写す
ることができる。In Japanese Patent Publication No. 48-22763, Japanese Patent Publication No. 57-20632, etc., a method has been developed in which the entire toner image is transferred to an intermediate transfer body [by pressure contact, and then the toner image on the intermediate transfer body is transferred and fixed onto a recording medium. There is. According to this method, the toner image can be transferred to the recording medium without disturbance, unlike the case of electrostatic transfer.
Ｈｘａ陶は従来の転写定着装置を用りた記録装置の基本
構成を示す陶である。図中、ｌは感光体ドラム等の像保
持体、２は帯電器、３は露光器、４は現で東器、５はク
リーナである。２０は＠厚定着挨竜であり、中間転写体
６、押圧ローラ７、バックアップローラ８、テンシロン
ローラ９、ヒートローラ１０、ヒータ１１より構成され
、１２は紙等の記録体、１３はトナー像である。Hxa ceramic is a ceramic that shows the basic configuration of a recording device using a conventional transfer fixing device. In the figure, 1 is an image holder such as a photosensitive drum, 2 is a charger, 3 is an exposure device, 4 is a present device, and 5 is a cleaner. 20 is a @thick fixing device, which is composed of an intermediate transfer member 6, a pressure roller 7, a backup roller 8, a tensilon roller 9, a heat roller 10, and a heater 11; 12 is a recording medium such as paper; and 13 is a toner image. be.
中間転写体６は、基材の上に＠厚層を成形あるいはコー
ティングして作られる。基材にはニッケル電鋳ベルトや
ポリイミド等の耐熱性の優れた高分子樹脂フィルムをベ
ルト状にしたものが用いられ、転゛厚層にはシリコーン
ゴム、フッ素ゴム等の耐熱性、離型性の優れたゴムが用
いられる。The intermediate transfer body 6 is made by molding or coating a thick layer on a base material. The base material is a belt-shaped polymer resin film with excellent heat resistance such as nickel electroformed belt or polyimide, and the thick layer is made of silicone rubber, fluorine rubber, etc. with heat resistance and mold release properties. High quality rubber is used.
像保持体１は帯電器２により一様に帯電される。The image carrier 1 is uniformly charged by a charger 2.
次に露光器３により静電潜像が形成され、現像器４によ
妙可視化されて、トナー像１３ａとなる。トナー像１３
ａは押圧ローラ７の加圧力により中間転写体６が像保持
体ｌに圧接されている位置で中間転写体６に転写される
。転写後、像保持体１に残留しているトナーはクリーナ
５によりクリーニングされる。中間転写体６上のトナー
像１３ｂは、ヒータＩＩを内蔵したヒートローラ１０と
バックアップローラ８により記録体１２１Ｃｆｃ蓼定着
される。Next, an electrostatic latent image is formed by the exposure device 3 and visualized by the developing device 4 to become a toner image 13a. Toner image 13
The image a is transferred to the intermediate transfer body 6 at a position where the intermediate transfer body 6 is pressed against the image carrier l by the pressure of the pressure roller 7. After the transfer, the toner remaining on the image carrier 1 is cleaned by the cleaner 5. The toner image 13b on the intermediate transfer body 6 is fixed on the recording body 121Cfc by a heat roller 10 having a built-in heater II and a backup roller 8.
このように中間転写体６を使用し九転蓼定着法では、中
間！５写体６から記録紙１２にトナーｌを転写定着する
際、紙１２の裏側（非印字側）にヒートローラ１０を接
触させて紙を加熱し、その熱で表側（印字側）にあるト
ナーを溶融して紙に定着させている。In this way, in the nine-turn fixing method using the intermediate transfer body 6, the intermediate! 5. When transferring and fixing the toner l from the photographic object 6 to the recording paper 12, the heat roller 10 is brought into contact with the back side (non-printing side) of the paper 12 to heat the paper, and the toner on the front side (printing side) is heated by the heat roller 10. is melted and fixed on paper.
紙の裏側にヒートローラ１０全構成する理由としては、
■中間転写体６の転写層が０．１〜０．５鴎の肉厚をも
った熱伝導率の低いゴム層であるため、中間転写体６の
裏側にヒートローラ１０を構成するよりも熱効率が良い
こと、■中間転写体６をトナー溶融温度まで一端加熱し
てしまうと、ゴム層の熱容量が大きいため、二次転写（
熱定着）位置Ａさら一次転琴位電Ｂにもどる時に放熱が
十分性なわれず、−次転厚部Ｂで中間転写体６から像保
持体１に鵠が伝わり、壕保持体１の性能が劣化したり、
像保持体ｌに軟化したトナーが付着する（フィルミング
）問題が趨こること、が挙げられる。The reason for configuring all the heat rollers 10 on the back side of the paper is as follows.
■Since the transfer layer of the intermediate transfer body 6 is a rubber layer with a thickness of 0.1 to 0.5 mm and low thermal conductivity, it is more thermally efficient than configuring the heat roller 10 on the back side of the intermediate transfer body 6. ■ If the intermediate transfer body 6 is heated to the toner melting temperature, the heat capacity of the rubber layer is large, so the secondary transfer (
Thermal fixation) When returning from position A to primary transfer potential B, heat dissipation is not sufficient, and heat is transmitted from intermediate transfer body 6 to image holding body 1 at -second transfer thick portion B, resulting in poor performance of groove holding body 1. deteriorates or
One of the problems is that softened toner adheres to the image carrier l (filming).
このような理由から、従来、紙の裏側より加熱して二次
転写していた。しかしながら、紙を裏側から加熱する場
合、紙の厚さ方向に熱分布ができるため、紙の表裏で温
度差を生じ、紙の表裏で熱収縮量が異なって紙がカール
したり、表側がトナー溶融温度に達していないときには
、紙にトナーが十分定着し々いとｈう問題があった。For these reasons, conventionally, secondary transfer has been performed by heating the paper from the back side. However, when heating paper from the back side, heat distribution occurs in the thickness direction of the paper, resulting in a temperature difference between the front and back sides of the paper.The amount of heat shrinkage differs between the front and back sides of the paper, causing the paper to curl, or toner on the front side. When the melting temperature has not been reached, there is a problem in that the toner is not sufficiently fixed on the paper.
本発明の目的は、前述した従来の問題に鑑み、記録紙の
カールを防止することができ、且つ、トナーの定着性を
向上させゐことが可能な転写定着４１！青を提供するこ
とにある。SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, an object of the present invention is to provide a transfer fixing system 41 that can prevent curling of recording paper and improve toner fixing properties! Our mission is to provide blue.
第１閾に示されるように、像保持体ｌ上に形成されたト
ナー像＃１３ａ、Ｉが転写される無端状の中間転写体６
と、該中間転写体６との間に記録紙１２を挾持し、誼記
鎌紙１２を加熱することで該中間転写体６上のトナー像
を該記録紙１２上に溶融定着させる熱ローラ１０とを含
む転写定着装置であって、前記熱ローラ１０と前記中間
転写体６との間を通過し九記碌紙１２を前記中間転写体
６側から加熱する熱ローラ１４を備えて成ることを特徴
とする転写定着装置ｌｔＴ／ｃより達成される。As shown in the first threshold, an endless intermediate transfer body 6 to which toner images #13a and I formed on the image carrier l are transferred.
and a heat roller 10 which holds a recording paper 12 between the intermediate transfer body 6 and melts and fixes the toner image on the intermediate transfer body 6 onto the recording paper 12 by heating the recording paper 12. The transfer fixing device includes a heat roller 14 that passes between the heat roller 10 and the intermediate transfer body 6 and heats the paper 12 from the intermediate transfer body 6 side. This is achieved by the characteristic transfer/fixing device ltT/c.
このように、本発明の＠イ定着装置は、熱ローラ１０を
通過した記録紙１２ｔ？、中間転写体６側から加熱する
熱ローラ１４を設けているので、熱λ
ローラ１０で記録紙１４の裏側から加熱してトナ−を記
録紙１２に転写し九後、熱ローラ１４により記録紙１２
の表側が加熱されるので、記録紙１２は表裏両側から均
等に加熱され、記録紙のカールか防止される。また、同
時にトナーが再度加熱されるので、溶融して記録紙１２
の繊維間により深く浸透する。In this way, the @A fixing device of the present invention has 12 tons of recording paper that has passed through the heat roller 10? Since a heat roller 14 that heats from the side of the intermediate transfer body 6 is provided, the heat λ roller 10 heats the recording paper 14 from the back side and transfers the toner onto the recording paper 12. After that, the heat roller 14 transfers the toner to the recording paper 12. 12
Since the front side of the recording paper 12 is heated, the recording paper 12 is heated evenly from both the front and back sides, thereby preventing the recording paper from curling. At the same time, the toner is heated again, so it melts and leaves the recording paper 12.
Penetrates deeper between the fibers.
第１南は本発明に係る＠ダ定着４ｒ＆竜の一実施例を示
す図である。The first south is a diagram showing an embodiment of @da fixation 4r & dragon according to the present invention.
図中、ＩＦｉ儂保持体、６は中間転写体、７は押圧ロー
ラ、８はバックアップローラ、９はテンシ冒ンローラ、
１０はヒートローラ、ｌｌはヒータ、１２は記録紙、１
３はトナー像、１４は熱ローラ、１６１ｄ紙ｍ送ローラ
、１５はヒータ、１７はガイド板である。In the figure, 6 is an intermediate transfer body, 7 is a pressure roller, 8 is a backup roller, 9 is a tension roller,
10 is a heat roller, 11 is a heater, 12 is a recording paper, 1
3 is a toner image, 14 is a heat roller, 161d is a paper feed roller, 15 is a heater, and 17 is a guide plate.
第１図に示すように、本実施例の中間＠１部では、二次
転写部Ａから送り出された記録紙を搬送する熱ローラ１
４と紙搬送ローラ１６が設けである。熱ローラ１４は、
アルミニウム等の熱伝導性の良好な金属からなる円筒ロ
ーラに、ＰＴＦＥ（ポリテトラフルオロエチレン）やＰ
ＦＡ（パーフルオロアルコキシ）等のフッ素系樹脂をコ
ーチインクして作られる。熱ローラ１４０表面は、ゴム
ブレードやフェルト（図示せず）でクリーニングされる
ようになっており、また内部にはヒータ１５がＩＶｖ置
されている。紙ｗ１送ローラ１６はシリコーンゴム等の
耐熱性が高いゴムを使用したゴムローラである。As shown in FIG. 1, in the middle @1 section of this embodiment, the heat roller 1 that conveys the recording paper sent out from the secondary transfer section A
4 and a paper conveying roller 16 are provided. The heat roller 14 is
A cylindrical roller made of a metal with good thermal conductivity such as aluminum is coated with PTFE (polytetrafluoroethylene) or P.
It is made by using a fluororesin such as FA (perfluoroalkoxy) as a coach ink. The surface of the heat roller 140 is cleaned with a rubber blade or felt (not shown), and a heater 15 is placed inside. The paper w1 feed roller 16 is a rubber roller made of highly heat-resistant rubber such as silicone rubber.
以上説明した構成において、像保持体１上に形成された
トナー像１３ａは、押圧ローラ７の加圧力により中間転
写体６が像保持体ｌに圧接されている位置（−次転写部
）Ｂで中間転写体６に転写される。中間転写体上のトナ
ー像１３ｂは、ヒータ１１を内蔵し九ヒートローラ１０
とバックアップローラ８が圧接してｈる位置（二次転ｑ
部）Ａで記録紙１２に転写され、トナー像１３ｃとなる
。このとき、二次転写部Ａを通過した記録紙１２は、第
２図に示すように、ヒートローラ９１ＩＣカールする。In the configuration described above, the toner image 13a formed on the image carrier 1 is formed at a position (-next transfer portion) B where the intermediate transfer member 6 is pressed against the image carrier l by the pressing force of the pressure roller 7. The image is transferred to the intermediate transfer body 6. The toner image 13b on the intermediate transfer body is transferred to a heat roller 10 with a built-in heater 11.
and the backup roller 8 are in pressure contact with each other (secondary rotation q)
In part) A, the toner image is transferred to the recording paper 12 and becomes a toner image 13c. At this time, the recording paper 12 that has passed through the secondary transfer section A is curled by the heat roller 91IC, as shown in FIG.
これは本方式が記録紙の裏側から加熱してトナーを博醜
し転写定着する方式のため、通常のヒートローラ定着方
式のようにトナーを直接ヒートローラ１０に接触させる
場合よりも記録紙（特に裏側）に対して多くの熱が加え
られ、裏側が表側よりも、より多く熱収縮したことに起
因する。This is because this method heats the toner from the back side of the recording paper to brighten and transfer and fix the toner, so the recording paper (especially This is due to the fact that more heat was applied to the back side (the back side), causing the back side to shrink more than the front side.
二次転写部Ａを通過した記録紙１２は、ガイド板１７に
沿って進み、熱ローラ１４と紙搬送ローラ１６との間に
挿入される０ここでＰ、碌紙１２は浸側（印字側）が加
熱される。The recording paper 12 that has passed through the secondary transfer section A advances along the guide plate 17 and is inserted between the heat roller 14 and the paper conveyance roller 16. ) is heated.
なお、記録紙が二次転蓼部及び熱ローラと紙搬送ローラ
との間を通過する間に、それぞれ裏側。Note that while the recording paper passes between the secondary rolling section, the heat roller, and the paper conveyance roller, the back side of the recording paper is removed.
裏側から受ける熱量は、接触長、接触時間、ヒートロー
ラの表面温賓等を考慮して均等になるようにＡ馬幣され
ているｏしたがって、紙豪送ローラを通過することによ
り、記録紙のカールは冷去される。また、同時にトナー
が再度加熱され溶融して記録紙の横瞬間により深く浸透
するので、定着性が良好なトナー像１３ｄが得られる。The amount of heat received from the back side is equalized by considering the contact length, contact time, heat roller surface temperature, etc. Therefore, by passing the paper transport roller, the recording paper The curls are left to cool. Furthermore, at the same time, the toner is heated again, melted, and penetrates more deeply into the recording paper laterally, so that a toner image 13d with good fixability can be obtained.
以上説明したように、本発明によれば、二次伝Ｖ部で記
録紙の裏側から加熱してトナーを記録紙に転写した後、
熱源を内蔵した熱ローラにより記録紙の表側が加熱され
るので、記飛紙は表裏均等に＾収喘が起こってカールが
防止され、かつトナーの定着性が向上する。As explained above, according to the present invention, after the toner is transferred to the recording paper by heating it from the back side of the recording paper in the secondary transfer V section,
Since the front side of the recording paper is heated by a heat roller with a built-in heat source, the recording paper shrinks evenly on both sides, preventing curling and improving toner fixability.
＠１図は本発明にかかる＠厚定着美竜の一実施例の説明
図、第２図は紙のカール方向の説明図、第３図は従来の
転写定着＠置の説明図である。
９に″“１・−１１−”・１０・１４−。
−ラ、１２は記録紙である０
＞、＝ ：、゛；
ｔ １ 渦
ｌＵ
執りカール方向穀、１月砧
多ξ＆、東Ｊ４定着剋償め説旧月πう
寥３ ΣFigure 1 is an explanatory diagram of an embodiment of the Atsushi Fixing Miryu according to the present invention, Figure 2 is an explanatory diagram of the curl direction of paper, and Figure 3 is an explanatory diagram of a conventional transfer and fixing machine. 9 is "1・-11-"・10・14-. Fixed atonement theory Old Moon π Uho 3 Σ
Claims (1)
写される無端状の中間転写体（６）と、 該中間転写体（６）との間に記録紙（１２）を挾持し、
該記録紙（１２）を加熱することで該中間転写体（６）
上のトナー像を該記録紙（１２）上に溶融定着させる熱
ローラ（１０）と、 を含む転写定着装置であって、 前記熱ローラ（１０）と前記中間転写体（６）との間を
通過した記録紙（１２）を前記中間転写体（６）側から
加熱する熱ローラ（１４）を備えて成ることを特徴とす
る転写定着装置。[Claims] An endless intermediate transfer body (6) to which the toner image (13a) formed on the image carrier (1) is transferred, and a recording paper between the intermediate transfer body (6). Hold (12),
By heating the recording paper (12), the intermediate transfer body (6)
a heat roller (10) for melting and fixing the upper toner image onto the recording paper (12); A transfer fixing device comprising a heat roller (14) that heats the recording paper (12) that has passed through it from the intermediate transfer body (6) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15596487A JPS64976A (en) | 1987-06-23 | 1987-06-23 | Transferring and fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15596487A JPS64976A (en) | 1987-06-23 | 1987-06-23 | Transferring and fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01976A true JPH01976A (en) | 1989-01-05 |
| JPS64976A JPS64976A (en) | 1989-01-05 |
Family
ID=15617388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15596487A Pending JPS64976A (en) | 1987-06-23 | 1987-06-23 | Transferring and fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS64976A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2759726B2 (en) * | 1992-08-04 | 1998-05-28 | 日本電信電話株式会社 | How to change the refractive index of polyimide |
| KR100842013B1 (en) * | 2006-07-13 | 2008-06-27 | 대상 주식회사 | - - -Butyrobetaine hydroxylase derived from Neurospora crassa its gene and processes for preparing L-carnitine using the same |
-
1987
- 1987-06-23 JP JP15596487A patent/JPS64976A/en active Pending
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