JPH0922209A - Fixing device - Google Patents
Fixing deviceInfo
- Publication number
- JPH0922209A JPH0922209A JP17335195A JP17335195A JPH0922209A JP H0922209 A JPH0922209 A JP H0922209A JP 17335195 A JP17335195 A JP 17335195A JP 17335195 A JP17335195 A JP 17335195A JP H0922209 A JPH0922209 A JP H0922209A
- Authority
- JP
- Japan
- Prior art keywords
- fixing
- guide member
- paper
- fixing device
- nip
- 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.)
- Withdrawn
Links
Landscapes
- Fixing For Electrophotography (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は複写機及びプリンタ
ー等の画像形成装置に適用される定着装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device applied to an image forming apparatus such as a copying machine and a printer.
【0002】[0002]
【従来の技術】従来の定着装置を図7に示す。ここで、
図7は定着装置の説明図であり、50c、50dは本装
置を構成するための枠体、50eは定着ローラ50aと
加圧ローラ(駆動ローラ)50bのニップへ紙を案内す
るための定着ガイド部材で、枠体50dに固定されてい
る。2. Description of the Related Art FIG. 7 shows a conventional fixing device. here,
FIG. 7 is an explanatory view of the fixing device. Reference numerals 50c and 50d are frames for constituting the present device, and 50e is a fixing guide for guiding the paper to the nip between the fixing roller 50a and the pressure roller (driving roller) 50b. The member is fixed to the frame body 50d.
【0003】[0003]
【発明が解決しようとする課題】しかしながら上記従来
例では図7に示すように上方(定着ローラ50a側)へ
カールした紙が来ると、定着ローラ50aと加圧ローラ
50bのニップへ紙がうまく案内されず、ジャムを引き
起こしてしまうことがあった。又、定着まわりの空気が
画像形成装置内のファンによって図7中の矢印A方向に
ひかれると、紙が上方にあおられて、さらにニップへの
突入を難しいものにしていた上、場合によっては紙が定
着前の像形成手段にこすられて画像品質を損ねることが
あった。その上、定着まわりの熱が矢印A方向に示す空
気の流れに乗って像形成手段(感光体、光学系等)に伝
わるため、像形成手段が昇温して画像品質が低下した
り、故障の原因になるという問題があった。However, in the above-described conventional example, when the curled paper comes upward (on the side of the fixing roller 50a) as shown in FIG. 7, the paper is successfully guided to the nip between the fixing roller 50a and the pressure roller 50b. Instead, it could cause a jam. Further, when the air around the fixing device is drawn in the direction of arrow A in FIG. 7 by the fan in the image forming apparatus, the paper is lifted upward, which makes it more difficult to enter the nip, and in some cases, The paper may be rubbed by the image forming means before fixing, thereby deteriorating the image quality. In addition, heat around the fixing is transferred to the image forming means (photoreceptor, optical system, etc.) along with the air flow shown in the direction of arrow A, so that the image forming means rises in temperature and the image quality is deteriorated, or failure occurs. There was a problem that caused.
【0004】[0004]
【課題を解決するための手段】上記課題を解決するため
本発明は、未定着像を記録材上に加熱定着する定着手段
と、この定着手段に記録材の移動を案するガイド部材
と、を有する定着装置において、前記ガイド部材は、前
記定着手段からの空気流を包囲する包囲形状を有するこ
とを特徴とするものである。In order to solve the above problems, the present invention comprises a fixing means for heating and fixing an unfixed image on a recording material, and a guide member for moving the recording material to the fixing means. In the fixing device having the above, the guide member has a surrounding shape surrounding the air flow from the fixing means.
【0005】[0005]
(第1の実施の形態)以下、図面を用いて本発明の実施
の形態を説明する。図6は本発明を適用した画像形成装
置の断面図、図1は図6の定着装置を示す図である。ま
ず図6に基づき画像形成装置について説明する。(First Embodiment) An embodiment of the present invention will be described below with reference to the drawings. 6 is a sectional view of an image forming apparatus to which the present invention is applied, and FIG. 1 is a diagram showing the fixing device of FIG. First, the image forming apparatus will be described with reference to FIG.
【0006】この画像形成装置Cは、図6に示すよう
に、画像情報に応じてレーザー光を照射する光学系1か
ら画像情報に基づいた光像を照射し、像担持体である感
光体ドラムに現像材(以下「トナー」という)の像を形
成する。そして前記トナー像の形成と同期して、記録媒
体2をカセット3aからピックアップローラ3b、搬送
ローラ対3c、3d等からなる搬送手段3で搬送し、且
つプロセスカートリッジDとしてカートリッジ化された
画像形成部において、前記感光体ドラムに形成したトナ
ー像を転写手段としての転写ローラ4に電圧印加するこ
とによって記録媒体2に転写し、その記録媒体2をヒー
タを内蔵する定着回転体5a、及び前記回転体5aに記
録媒体2を押圧して搬送する駆動ローラ5bからなる定
着手段5に搬送し、転写トナー像を記録媒体2に定着す
る。そしてこの記録媒体2を排出ローラ対3e、3fで
反転で搬送して排出部6へと排出する如く構成してい
る。As shown in FIG. 6, the image forming apparatus C irradiates an optical image based on the image information from an optical system 1 which irradiates a laser beam according to the image information, and a photosensitive drum which is an image carrier. An image of a developing material (hereinafter referred to as "toner") is formed on. Then, in synchronism with the formation of the toner image, the recording medium 2 is conveyed from the cassette 3a by the conveying means 3 including the pickup roller 3b, the pair of conveying rollers 3c and 3d, and the process cartridge D is formed into a cartridge. In, a toner image formed on the photosensitive drum is transferred to a recording medium 2 by applying a voltage to a transfer roller 4 as a transfer unit, and the recording medium 2 is fixed to a fixing rotating body 5a having a heater and the rotating body. The recording medium 2 is conveyed to the fixing means 5 composed of a driving roller 5b which presses and conveys the recording medium 2 to the recording medium 2, and fixes the transferred toner image on the recording medium 2. The recording medium 2 is reversed by the discharge roller pairs 3e and 3f to be conveyed and discharged to the discharge unit 6.
【0007】一方、前記画像形成部を形成するプロセス
カートリッジDは、感光層を有する感光体ドラム7を回
転し、その表面を帯電手段である帯電ローラ8への電圧
印加によって一様に帯電し、前記光学系1からの光像を
露光部を介して感光体ドラム7に露光して潜像を形成
し、現像手段9によって現像するように構成している。
この現像手段9は、トナー溜め9a内のトナーをトナー
送り部材(図示せず)で送り出し、固定磁石を内蔵した
現像ローラ9bを回転させると共に、現像ブレード9c
によって摩擦帯電電荷を付与したトナー層を現像ローラ
9bの表面に形成し、そのトナーを前記潜像に応じて感
光体ドラム7へ転移させることによってトナー像を形成
して可視像化する。そして転写ローラ4に前記トナー像
と逆極性の電圧を印加してトナー像を記録媒体2に転写
した後は、クリーニングブレード10aによって感光体
ドラム7に残留したトナーを掻き落とすと共に、廃トナ
ー溜め10bへ集めるクリーニング手段10によって感
光体ドラム7上の残留トナーを除去するように構成して
いる。On the other hand, in the process cartridge D forming the image forming portion, the photosensitive drum 7 having a photosensitive layer is rotated, and the surface thereof is uniformly charged by applying a voltage to the charging roller 8 as a charging means. The optical image from the optical system 1 is exposed to the photosensitive drum 7 through an exposure section to form a latent image, and the latent image is developed by the developing means 9.
The developing means 9 feeds the toner in the toner reservoir 9a by a toner feeding member (not shown), rotates the developing roller 9b having a fixed magnet built therein, and develops the developing blade 9c.
A toner layer to which a triboelectric charge is applied is formed on the surface of the developing roller 9b, and the toner is transferred to the photosensitive drum 7 in accordance with the latent image to form a toner image and visualize it. Then, after a voltage having a polarity opposite to that of the toner image is applied to the transfer roller 4 to transfer the toner image to the recording medium 2, the cleaning blade 10a scrapes off the toner remaining on the photosensitive drum 7 and the waste toner reservoir 10b. The cleaning means 10 that collects the residual toner on the photosensitive drum 7 is configured to be removed.
【0008】尚、前記感光体ドラム7や帯電ローラ8、
現像手段9等の各部品は、ハウジング内に収納してカー
トリッジ化され、装置本体11に設けられたカートリッ
ジ装着手段に対して着脱可能に装着される。The photosensitive drum 7 and the charging roller 8 are
Each component such as the developing means 9 is housed in a housing to form a cartridge, and is removably mounted to a cartridge mounting means provided in the apparatus main body 11.
【0009】前記カートリッジ装置手段は、開閉カバー
12を開くと、装置本体11内にカートリッジ装着スペ
ースが設けてあり、このスペースの左右内側面にプロセ
スカートリッジDを挿入するためのガイド部が対向して
設けてある。このガイド部に沿ってプロセスカートリッ
ジDを挿入し、カバー12を閉じることによってプロセ
スカートリッジDを画像形成装置Cに装着するものであ
る。In the cartridge device means, when the opening / closing cover 12 is opened, a cartridge mounting space is provided in the device body 11, and guide portions for inserting the process cartridge D are opposed to the left and right inner side surfaces of this space. It is provided. The process cartridge D is inserted into the image forming apparatus C by inserting the process cartridge D along the guide portion and closing the cover 12.
【0010】又、定着手段5や不図示の電源等からの発
熱により光学系1やプロセスカートリッジDあるいは不
図示のコントローラ部が昇温して故障するのを未然に防
ぐためにファン13から外装部のルーバーを通して熱を
機外へ放出している。尚、ここではファン13は図面奥
側(記録材の移動方向と直交する方向において、後述す
るガイド部材の端部側)に配置されている。Further, in order to prevent the optical system 1, the process cartridge D, or the controller unit (not shown) from rising in temperature and failing due to heat generated from the fixing unit 5 or a power source (not shown), the fan 13 is removed from the exterior part. Heat is released to the outside through the louver. Here, the fan 13 is arranged on the back side of the drawing (in the direction orthogonal to the moving direction of the recording material, on the end side of the guide member described later).
【0011】次に図1に基づき本実施形態の定着装置に
ついて説明する。本実施の形態では定着回転体5aの近
傍にガイド部材14が不図示の本体フレームに対して固
定されている。もちろん、定着装置の着脱に支障がなけ
れば、定着枠体5cにガイド部材14を固定することに
よって同部材の位置精度を高めることもできる。図2は
ガイド部材14の斜視図であり、同部材は図7の矢印A
に示す空気流を抑えるように定着回転体5a長手方向に
袋状に形成されており、又、定着回転体5aと駆動ロー
ラ5bのニップへ向かうガイドリブ14aが複数本設け
られている。したがって、図7の矢印Aに示す空気の流
れを少なくして、定着ニップ前での紙の浮き上がりを防
止でき、プロセスカートリッジDや光学系1の昇温も抑
えられる。又、上方(定着回転体5a側)へカールした
紙が搬送されてきても、ガイドリブ14aによってい確
実に定着ニップへと紙を案内することができる。これは
特に両面プリント時など、先端カール紙を搬送する際に
非常に有効である。さらに、定着装置内の水蒸気の流失
ず同ガイド部材14によって抑えられるため、定着後の
紙のカールも減少する。Next, the fixing device of this embodiment will be described with reference to FIG. In this embodiment, the guide member 14 is fixed to the main body frame (not shown) in the vicinity of the fixing rotary member 5a. Of course, if there is no hindrance to the attachment / detachment of the fixing device, the positional accuracy of the fixing member can be improved by fixing the guide member 14 to the fixing frame body 5c. 2 is a perspective view of the guide member 14, which is indicated by an arrow A in FIG.
The fixing rotary member 5a is formed in a bag shape in the longitudinal direction so as to suppress the air flow shown in (1), and a plurality of guide ribs 14a are provided to the nip between the fixing rotary member 5a and the driving roller 5b. Therefore, the air flow shown by the arrow A in FIG. 7 can be reduced to prevent the paper from floating before the fixing nip, and the temperature rise of the process cartridge D and the optical system 1 can be suppressed. Further, even if the curled paper is conveyed upward (on the side of the fixing rotator 5a), the guide rib 14a can reliably guide the paper to the fixing nip. This is very effective especially when conveying the leading edge curled paper, such as when performing double-sided printing. Further, since the water vapor in the fixing device is not lost and is suppressed by the guide member 14, curl of the paper after fixing is reduced.
【0012】(第2の実施の形態)図3は第2の実施の
形態を示す前記図1と同様の図であり、本実施の形態で
は駆動ローラ5b近傍に位置して、駆動ローラ5bまわ
りの空気を流れを少なくする遮蔽部材5fが枠体5dか
ら一体的に形成されている。よって、図3に示すよう
に、駆動ローラ5bと枠体5dの間を抜けようとする空
気の流れ(図中矢印B)を少なくして、定着ガイド部材
5eの下から上への空気の流れ(図中矢印E)を抑えこ
む。したがって、紙が定着ニップ前で持ち上げられるこ
とがさらに抑えられて、より確実に紙を定着ニップへと
案内することができる。又、図中矢印E方向の熱の流失
が抑えられるため、機内昇温をさらに抑えることができ
る。そして、定着装置内の水蒸気の流失もより抑えられ
るので、カールに対する効果もさらに向上する。(Second Embodiment) FIG. 3 is a view similar to FIG. 1 showing the second embodiment. In the present embodiment, it is located near the drive roller 5b and the periphery of the drive roller 5b. A shielding member 5f for reducing the flow of the air is integrally formed from the frame body 5d. Therefore, as shown in FIG. 3, the flow of air (arrow B in the figure) trying to pass between the drive roller 5b and the frame 5d is reduced, and the flow of air from the bottom to the top of the fixing guide member 5e is reduced. (Arrow E in the figure). Therefore, the paper is further prevented from being lifted before the fixing nip, and the paper can be more reliably guided to the fixing nip. Further, since the heat loss in the direction of arrow E in the figure is suppressed, the temperature rise inside the machine can be further suppressed. Further, the loss of water vapor in the fixing device is further suppressed, so that the effect on curling is further improved.
【0013】(第3の実施の形態)図4は第3の実施の
形態を示す前記図2と同様の図である。なお、本実施の
形態ではファン13はガイド部材14の紙搬送方向で手
前側に配置されており、ファン13に近い側のガイド部
材のリブ14bが、ファンに遠い側のガイドリブ14a
より紙搬送路に対して突出している。(Third Embodiment) FIG. 4 is a view similar to FIG. 2 showing the third embodiment. In the present embodiment, the fan 13 is arranged on the front side of the guide member 14 in the paper conveyance direction, and the rib 14b of the guide member on the side closer to the fan 13 is the guide rib 14a on the side farther from the fan.
Is more protruding than the paper transport path.
【0014】ここで、ガイド部材14の中には、ファン
に向かう空気流(図中矢印F)が存在しているため、ガ
イド部材14と、定着回転体5aの間からプロセスカー
トリッジD側へわずかながら抜けてくる空気流はファン
に近い側の方が多く、紙の浮き上がりに対して不利であ
る。よって、本実施例のようにすれば、紙の浮き上がり
に対して不利な側のリブが、紙に対する強制力が強いの
で、さらに安定した紙搬送が保障される。尚、リブ形状
は本実施の形態に限定されずに、空気流の度合やバラン
スに応じて自由に設定される。Here, since an air flow (arrow F in the drawing) toward the fan exists in the guide member 14, it is slightly moved between the guide member 14 and the fixing rotary member 5a toward the process cartridge D side. However, the air flow coming out is more on the side closer to the fan, which is disadvantageous for lifting the paper. Therefore, according to the present embodiment, since the rib on the side that is disadvantageous to the lifting of the paper has a strong compulsory force on the paper, more stable paper conveyance is guaranteed. The rib shape is not limited to that of the present embodiment, and can be freely set according to the degree and balance of the air flow.
【0015】(第4の実施の形態)図5は第4の実施の
形態を示す前記図3と同様の図であり、本実施の形態で
は遮蔽部材5fの先端に曲げ部が設けられている。よっ
て、駆動ローラ5bに最も近い部分がエッジではなく、
曲げ部になっているので、駆動ローラ5b組付時に駆動
ローラ5bを傷つけることがない。(Fourth Embodiment) FIG. 5 is a view similar to FIG. 3 showing the fourth embodiment. In this embodiment, a bent portion is provided at the tip of the shielding member 5f. . Therefore, the portion closest to the drive roller 5b is not the edge,
Since it is a bent portion, the drive roller 5b is not damaged when it is assembled.
【0016】尚、前述した像担持体としては、前記感光
体ドラムに限定されることなく、例えば次のものが含ま
れる。まず感光体としては光導電体が用いられ、光導電
体としては例えばアモルファスシリコン、アモルファス
セレン、酸化亜鉛、酸化チタン及び有機光導電体(OP
C)等が含まれる。また前記感光体を搭載する形状とし
ては、例えばドラム状、ベルト状等の回転体及びシート
等が含まれる。尚、一般的にはドラム状又はベルト状の
ものが用いらており、例えばドラムタイプの感光体にあ
っては、アルミ合金等のシリンダー上に光導電体を蒸着
又は塗工等を行ったものである。The above-mentioned image carrier is not limited to the above-mentioned photosensitive drum, but includes the following, for example. First, a photoconductor is used as the photoconductor, and examples of the photoconductor include amorphous silicon, amorphous selenium, zinc oxide, titanium oxide, and an organic photoconductor (OP).
C) and the like. The shape on which the photosensitive member is mounted includes, for example, a drum-shaped, belt-shaped rotating body, a sheet, and the like. Generally, a drum-shaped or belt-shaped one is used. For example, in the case of a drum type photoconductor, a photoconductor is vapor-deposited or coated on a cylinder of aluminum alloy or the like. Is.
【0017】また帯電手段の構成も、前述した実施の形
態では所謂接触帯電方法を用いたが、他の構成として従
来から用いられているタングステンワイヤーの三方周囲
にアルミ等の金属シールドを施し、前記タングステンワ
イヤーに高電圧を印加することによって生じた正又は負
のイオンを感光体ドラムの表面に移動させ、該ドラムの
表面を一様に帯電する構成を用いても良いことは当然で
ある。As for the structure of the charging means, the so-called contact charging method is used in the above-described embodiment, but a tungsten wire which has been conventionally used as another structure is provided with a metal shield such as aluminum around the three sides, It goes without saying that a configuration may be used in which positive or negative ions generated by applying a high voltage to the tungsten wire are moved to the surface of the photosensitive drum to uniformly charge the surface of the drum.
【0018】尚、前記帯電手段としては前記ローラ型以
外にも、ブレード型(帯電ブレード)、パッド型、ブロ
ック型、ロッド型、ワイヤ型等のものでも良い。The charging means may be of a blade type (charging blade), a pad type, a block type, a rod type, a wire type or the like, other than the roller type.
【0019】また、現像方法としては、公知の2成分磁
気ブラシ現像法、カスケード現像法、タッチダウン現像
法、クラウド現像法等の種々の現像法を用いることが可
能である。As the developing method, various known developing methods such as a two-component magnetic brush developing method, a cascade developing method, a touch-down developing method and a cloud developing method can be used.
【0020】また感光体ドラムに残存するトナーのクリ
ーニング方法としても、ブレード、ファーブラシ、磁気
ブラシ等を用いてクリーニング手段を構成しても良い。Further, as a method for cleaning the toner remaining on the photosensitive drum, the cleaning means may be constituted by using a blade, a fur brush, a magnetic brush or the like.
【0021】また前述したプロセスカートリッジとは、
像担持体としての例えばせ電子写真感光体等と、少なく
ともプロセス手段の1つを備えたものである。従って、
そのプロセスカートリッジの態様としては、前述した実
施例のもの以外にも、例えば像担持体と帯電手段とを一
体的にカートリッジ化し、装置本体に着脱可能にするも
の。像担持体と現像手段とを一体化的にカートリッジ化
し、装置本体に着脱可能にするもの。像担持体とクリー
ニング手段とを一体的にカートリッジ化し、装置本体に
着脱可能にするもの。更には像担持体と、前記プロセス
手段の2つ以上のものを組み合わせて一体的にカートリ
ッジ化し、装置本体に着脱可能にするもの等がある。The above-mentioned process cartridge is
For example, a pseudo electrophotographic photosensitive member as an image carrier and at least one of process means are provided. Therefore,
As the mode of the process cartridge, other than the embodiment described above, for example, the image carrier and the charging means are integrally formed into a cartridge, which is attachable to and detachable from the apparatus body. A cartridge in which the image carrier and the developing means are integrated into a cartridge, and which is detachable from the apparatus main body. A device in which the image carrier and the cleaning means are integrally formed into a cartridge and can be attached to and detached from the apparatus main body. Further, there is a type in which an image carrier and two or more of the above-mentioned process means are combined into a cartridge to be detachable from the apparatus main body.
【0022】即ち、前述したプロセスカートリッジと
は、帯電手段、現像手段又はクリーニング手段と電子写
真感光体とを一体的にカートリッジ化し、このカートリ
ッジを画像形成装置本体に対して着脱可能とするもので
ある。及び帯電手段、現像手段、クリーニング手段の少
なくとも一つと電子写真感光体とを一体的にカートリッ
ジ化して画像形成装置本体に着脱可能とするものであ
る。更に少なくとも現像手段と電子写真感光体とを一体
的にカートリッジ化して装置本体に着脱可能とするもの
をいう。That is, the above-mentioned process cartridge is one in which the charging means, the developing means or the cleaning means and the electrophotographic photosensitive member are integrated into a cartridge, and the cartridge can be attached to and detached from the main body of the image forming apparatus. . Further, at least one of the charging means, the developing means, and the cleaning means and the electrophotographic photosensitive member are integrally made into a cartridge so that it can be attached to and detached from the main body of the image forming apparatus. Further, it means that at least the developing means and the electrophotographic photosensitive member are integrally formed into a cartridge so as to be detachable from the apparatus main body.
【0023】更に前述した実施の形態では画像形成装置
としてレーザービームプリンタを例示したが、本発明は
これに限定する必要はなく、例えば電子写真複写機、フ
ァクシミリ装置、或いはワードプロセッサ等の他の画像
形成装置に使用することも当然可能である。Further, although the laser beam printer is exemplified as the image forming apparatus in the above-mentioned embodiment, the present invention is not limited to this, and other image forming such as an electrophotographic copying machine, a facsimile machine or a word processor is possible. Of course, it can also be used in a device.
【0024】[0024]
【発明の効果】以上説明した様に本発明によれば、定着
手段からの空気流を遮断することができ、機内昇温を抑
え画像品位の劣化や機内部品の故障を防止することがで
きる。As described above, according to the present invention, it is possible to block the air flow from the fixing means, suppress the temperature rise in the machine, and prevent the deterioration of image quality and the failure of parts in the machine.
【図1】本発明の第1の実施の形態である定着装置を示
す図。FIG. 1 is a diagram showing a fixing device according to a first embodiment of the present invention.
【図2】第1の実施の形態のガイド部材を示す図。FIG. 2 is a diagram showing a guide member according to the first embodiment.
【図3】本発明の第2の実施の形態である定着装置を示
す図。FIG. 3 is a diagram showing a fixing device according to a second embodiment of the present invention.
【図4】本発明の第3の実施の形態のガイド部材を示す
図。FIG. 4 is a diagram showing a guide member according to a third embodiment of the present invention.
【図5】本発明の第4の実施の形態である定着装置を示
す図。FIG. 5 is a diagram showing a fixing device according to a fourth embodiment of the present invention.
【図6】本発明を適用した画像形成装置を示す図。FIG. 6 is a diagram showing an image forming apparatus to which the present invention is applied.
【図7】従来の定着装置を示す図。FIG. 7 is a diagram showing a conventional fixing device.
5 定着装置 5a 定着ローラ 5b 駆動ローラ(加圧ローラ) 5c、5d 定着枠体 5e 定着ガイド部材 5f 遮蔽部材 13 ファン 14 ガイド部材 14a、14b ガイドリブ 5 Fixing Device 5a Fixing Roller 5b Driving Roller (Pressing Roller) 5c, 5d Fixing Frame 5e Fixing Guide Member 5f Shielding Member 13 Fan 14 Guide Member 14a, 14b Guide Rib
Claims (4)
手段と、この定着手段に記録材の移動を案内するガイド
部材と、を有する定着装置において、 前記ガイド部材は前記定着手段からの空気流を包囲する
包囲形状を有することを特徴とする定着装置。1. A fixing device having a fixing means for heating and fixing an unfixed image on a recording material, and a guide member for guiding the movement of the recording material to the fixing means, wherein the guide member is provided from the fixing means. A fixing device having an enclosing shape for enclosing an air flow.
て、前記定着手段の一端側に設けられた排気手段を有
し、前記ガイド部材は前記排気手段に近い方が遠い方よ
りも記録材の移動路側に突出したリブを有することを特
徴とする請求項1の定着装置。2. An exhaust means provided at one end side of the fixing means in a direction orthogonal to the moving direction of the recording material, wherein the guide member is closer to the exhaust means than is far from the recording material. The fixing device according to claim 1, further comprising a rib protruding toward the moving path.
体は前記定着手段と枠体の間の空気流を遮蔽する遮蔽部
を有することを特徴とする請求項1の定着装置。3. The fixing device according to claim 1, further comprising a frame body surrounding the fixing means, the frame body having a shielding portion for shielding an air flow between the fixing means and the frame body.
部に曲げ部を有することを特徴とする請求項3の定着装
置。4. The fixing device according to claim 3, wherein the shielding portion has a bent portion at an end portion close to the fixing means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17335195A JPH0922209A (en) | 1995-07-10 | 1995-07-10 | Fixing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17335195A JPH0922209A (en) | 1995-07-10 | 1995-07-10 | Fixing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0922209A true JPH0922209A (en) | 1997-01-21 |
Family
ID=15958812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17335195A Withdrawn JPH0922209A (en) | 1995-07-10 | 1995-07-10 | Fixing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0922209A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6763217B2 (en) * | 2002-12-17 | 2004-07-13 | Xerox Corporation | Substrate guide member with improved flatness and method of making the same |
-
1995
- 1995-07-10 JP JP17335195A patent/JPH0922209A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6763217B2 (en) * | 2002-12-17 | 2004-07-13 | Xerox Corporation | Substrate guide member with improved flatness and method of making the same |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20021001 |