JPS60173559A - Picture disorder preventing device - Google Patents
Picture disorder preventing deviceInfo
- Publication number
- JPS60173559A JPS60173559A JP59030501A JP3050184A JPS60173559A JP S60173559 A JPS60173559 A JP S60173559A JP 59030501 A JP59030501 A JP 59030501A JP 3050184 A JP3050184 A JP 3050184A JP S60173559 A JPS60173559 A JP S60173559A
- Authority
- JP
- Japan
- Prior art keywords
- transfer paper
- photoreceptor
- photosensitive body
- transfer
- driven roller
- 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
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
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6529—Transporting
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Paper Feeding For Electrophotography (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電子写真複写装置において、複写した画像の乱
れを防止する防止装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a prevention device for preventing distortion of a copied image in an electrophotographic copying apparatus.
従来例の構成とその問題点
一般に電子写真複写装置はドラム状またはベルト状の感
光体に帯電チャージャーで帯電させ、露光を施して静電
潜像を形成する。これにトナーで２・ −
現像し、転写紙を感光体表面の現像面に接触させた状態
で転写チャージャ〜により、トナーの保持している電荷
と逆極性のコロナ放電を転写紙に与え、現像したトナー
像を転写紙に転写させる。次に転写した転写紙を感光体
から分離させるために分離チャージャーを用いてＡＣコ
ロナ放電を与え、転写によって帯電している転写紙およ
びトナー自身の持つ電荷を除電してやると転写紙の持つ
剛性と自重によって感光体から自然に分離する。この転
写紙が定着ガイドによって定着装置に導かれ、トナー像
が転写紙に定着される。Conventional Structure and Problems Generally, in an electrophotographic copying apparatus, a drum-shaped or belt-shaped photoreceptor is charged with a charger and exposed to light to form an electrostatic latent image. This is developed with toner, and with the transfer paper in contact with the developing surface of the photoreceptor surface, a transfer charger applies a corona discharge of opposite polarity to the charge held by the toner to the transfer paper, and the development is carried out. Transfer the toner image onto transfer paper. Next, in order to separate the transferred transfer paper from the photoconductor, a separation charger is used to apply an AC corona discharge to remove the electric charge of the transfer paper and toner itself, which has been charged due to transfer. This increases the rigidity and weight of the transfer paper. naturally separates from the photoreceptor. This transfer paper is guided to a fixing device by a fixing guide, and the toner image is fixed on the transfer paper.
以上のような構成が一般的な電子写真複写装置であるが
、複写機の構成を簡単にして小型で安価な製品を商品化
する動きが高まり、前記述べた複写機構成を簡単にする
ために帯電および転写を１個のチャージャで行ない、分
離チャージャーを除去し、これと合せてＡＣ高圧電源を
除去する複写機が考案されている。第１図はこれらの一
従来例を示すものである。第１図に示すように転写ガイ
ド３によって感光体駆動ドラム１ａと感光体従動ローラ
ー１ｂに装着されたベルト状感光体１にガイドされた転
写紙２は画像形成手段によってベルト状感光体１の表面
に形成されたトナー像を帯電および転写兼用チャージャ
ー４によって転写させる。次に転写紙２とベルト状感光
体１が同速度で進行し、転写紙２の先端が感光体従動ロ
ーラー１ｂに達すると感光体従動ローラ−１ｂ部の曲率
を大きくしているため転写紙２がこの曲率によって転写
紙２の剛性により直進し、この曲率の部分でベルト状感
光体から転写紙２が離脱する。さらに転写紙２とベルト
状感光体１が進行すると転写紙２自身の自重によって転
写紙２の先端が下向方向へ進行して定着ガイド６に接触
してさらに進行し、定着装置６に導びかれてトナー像が
転写紙２に定着されるものである。ところが、一度複写
した転写紙を裏返して再度複写するいわゆる両面複写を
すると、第１図においてベルト状感光体１のトナー像を
転写後の転写紙２が定着ガイドに接触した瞬間に転写紙
２に転写された未定着トナー像が飛散するいわゆる画像
乱れが発生する問題があった。したがって両面複写がで
きないのが現状であった。この現像は従来の複写機構成
であるところの分離チャージャーで転写後の転写紙とト
ナーの電荷を除電するものでは発生しないものである。The configuration described above is a common electrophotographic copying device, but there is an increasing trend to simplify the configuration of copiers and commercialize smaller, cheaper products. A copying machine has been devised in which charging and transfer are performed with a single charger, the separate charger is eliminated, and the AC high voltage power source is also eliminated. FIG. 1 shows one conventional example of these. As shown in FIG. 1, the transfer paper 2 guided by the transfer guide 3 to the belt-shaped photoconductor 1 attached to the photoconductor driving drum 1a and the photoconductor driven roller 1b is transferred to the surface of the belt-shaped photoconductor 1 by an image forming means. The toner image formed on the toner image is transferred by a charging/transferring charger 4. Next, the transfer paper 2 and the belt-shaped photoreceptor 1 advance at the same speed, and when the leading edge of the transfer paper 2 reaches the photoreceptor driven roller 1b, the curvature of the photoreceptor driven roller 1b section is increased, so the transfer paper 2 moves at the same speed. Due to this curvature, the transfer paper 2 moves straight due to its rigidity, and the transfer paper 2 separates from the belt-shaped photoreceptor at this curvature. As the transfer paper 2 and the belt-shaped photoreceptor 1 further advance, the leading edge of the transfer paper 2 advances downward due to its own weight, contacts the fixing guide 6, advances further, and is guided to the fixing device 6. The toner image is then fixed on the transfer paper 2. However, when performing so-called double-sided copying, in which the transfer paper that has been copied once is turned over and copied again, the toner image on the belt-shaped photoreceptor 1 is transferred to the transfer paper 2 at the moment it contacts the fixing guide, as shown in FIG. There is a problem in that so-called image disturbance occurs in which the transferred unfixed toner image is scattered. Therefore, the current situation was that double-sided copying was not possible. This development does not occur in the conventional copying machine configuration in which a separate charger eliminates the charges on the transfer paper and toner after transfer.
また、これらの画像乱れの発生する複写機構成において
共通するものとしては分離チャージャーを用いないで感
光体から転写紙を分離するもので、たとえば分離ベルト
、分離爪および前記−従来例で説明した感光体の一部の
曲率を大きくし、その部分で転写紙を自然分離する方法
等がある。これらの共通点は転写後の転写紙を除電せず
に感光体から分離するため、転写後の転写紙自身が転写
によって帯電しているもので、いずれの方式による分離
方法でも両面複写をすると転写紙が定着ガイドに接触し
た時点で転写紙上の未定着トナー像が飛散する画像乱れ
が発生し、商品質の画面複写ができない欠点がある。こ
の両面複写をすると画像乱れが発生する理由は転写後の
転写紙が１度目の定着による熱によって水分を除去され
転写紙自身の抵抗値が高くなり、さらに絶縁性が増加す
る。In addition, the copying machine configurations in which these image disturbances occur commonly include those that separate the transfer paper from the photoreceptor without using a separation charger, such as separation belts, separation claws, and the photoreceptor described above in the conventional example. There is a method of increasing the curvature of a part of the body and naturally separating the transfer paper at that part. The common point between these two methods is that the transfer paper itself is charged with electricity due to transfer because the transfer paper is separated from the photoreceptor without static electricity removal. When the paper comes into contact with the fixing guide, the unfixed toner image on the transfer paper scatters, causing image disturbance, which has the drawback that commercial quality screen copying cannot be achieved. The reason why image disturbance occurs when double-sided copying is performed is that moisture is removed from the transfer paper after the transfer due to the heat caused by the first fixing, and the resistance value of the transfer paper itself increases, further increasing its insulation properties.
この転写紙を両面複写用紙として用いると２度目の転写
により転写紙に蓄積される電荷量が１度目の転写に比較
して著しく増大してしまう。この転写紙が感光体から分
離して定着ガイドに接触すると転写紙の電荷が急激に除
電され、その瞬間に転写紙上の未定着トナーが飛散する
画像乱れが発生する。したがって１回目の複写では画像
乱れは起きないが２回目の複写（両面複写）で画像乱れ
が起きるのは感光体から分離後の転写紙がもつ電荷量の
大きさ、言い換えると定着ガイドに転写紙が接触して除
電される電荷の変化量が大きいからである。また、通常
の状態での画像乱れは両面複写、よ発生ｔ６，８１４．
ｆｌ］。複５に蒜ア、ウワとしての抵抗値が大きいポリ
エステルフィルムを用いた転写紙は１度目の複写で画像
乱れが発生する。したがって従来の複写機は使用できる
転写紙が著しく制限される欠点があった。これらの欠点
を解決する方法として第２図に示すような画像乱れ防止
可能な複写機を考案した。第２図において・′：。If this transfer paper is used as double-sided copy paper, the amount of charge accumulated on the transfer paper during the second transfer will be significantly increased compared to the first transfer. When the transfer paper separates from the photoreceptor and contacts the fixing guide, the charge on the transfer paper is rapidly removed, and at that moment unfixed toner on the transfer paper scatters, causing image disturbance. Therefore, image disturbance does not occur in the first copy, but image disturbance occurs in the second copy (double-sided copying) due to the amount of charge that the transfer paper has after being separated from the photoconductor, in other words, the transfer paper is attached to the fixing guide. This is because the amount of change in charge that is removed when the two contacts contact each other is large. In addition, image distortion under normal conditions occurs during double-sided copying at t6, 814.
fl]. Transfer paper using a polyester film with a high resistance value causes image disturbances during the first copying. Therefore, conventional copying machines have the disadvantage that the types of transfer paper that can be used are severely limited. As a method to solve these drawbacks, we devised a copying machine that can prevent image disturbances as shown in FIG. In Figure 2:.
１はＯＰＣのベルト状感光体である。このＯＰＣの感光
体はベースにポリエステルフィルム’ｔｆ用し、この表
面に感光層を設けたものである。このｏｐｃのベルト状
感光体１（以下感光体と記す）を感光体駆動ドラム１ａ
と感光体従動ローラー１ｂに装着して駆動できるように
しである。転写ガイド３によって感光体１にガイドされ
た転写紙２は画像形成手段によって感光体１の表面に形
成されたトナー像を帯！および転写兼用チャージャー４
によって転写させる。次に転写紙２と感光体１が同速度
で進行し、転写紙２の先端が感光体従動ローラー１ｂに
達すると感光体の曲率の変化により転写紙２の剛性によ
る直進性が転写紙２と感光体１との静電吸着力より打ち
勝って、感光体従動ローラー１ｂにおいて転写紙２が感
光体１から離脱する。さらに転写紙２と感光体１が進行
すると転写紙２の剛性による直進性が自重に耐えられな
くなって転写紙２の先端が下向方向へ進行する。1 is an OPC belt-shaped photoreceptor. This OPC photoreceptor has a polyester film 'tf as its base and a photosensitive layer provided on its surface. The belt-shaped photoreceptor 1 (hereinafter referred to as photoreceptor) of this OPC is a photoreceptor driving drum 1a.
The photoconductor driven roller 1b is attached to the photoconductor driven roller 1b so that it can be driven. The transfer paper 2 guided to the photoconductor 1 by the transfer guide 3 carries the toner image formed on the surface of the photoconductor 1 by the image forming means! and transfer charger 4
transcribed by. Next, the transfer paper 2 and the photoconductor 1 advance at the same speed, and when the leading edge of the transfer paper 2 reaches the photoconductor driven roller 1b, the straightness due to the rigidity of the transfer paper 2 changes due to the change in the curvature of the photoconductor. The transfer paper 2 overcomes the electrostatic attraction force with the photoreceptor 1 and separates from the photoreceptor 1 at the photoreceptor driven roller 1b. As the transfer paper 2 and photoreceptor 1 further advance, the straightness of the transfer paper 2 due to its rigidity cannot withstand its own weight, and the leading edge of the transfer paper 2 advances downward.
この転写紙２の先端が下向線をたどる以前に定着装置６
の定着開始点を設ける。すなわち、感光体従動ローラー
１ｂと定着装置６を近接させる。この構成にして転写紙
２が感光体従動ローラー１ｂから離脱後、前記転写紙２
が大気以外の部材に接触しないまま、ただちに定着装置
６によって定着され、画像乱れを発生させないようにし
たものである。ところが、この方法によって画像乱れを
防止できるが、前記に記述したように感光体従動ローラ
ーと定着装置を近接させる必要がある。この結果、定着
装置からの輻射熱が感光体の温度を著しく上昇させる原
因となり、複写機を連続で長時間使用すると機内温度上
昇も加わり、感光体のペースであるところのポリエステ
ルフィルムが熱によって変形を起こし、ベルト状感光体
周長が伸び、感光体に弛みが生じ、また、スリップ等を
発生して感光体駆動に支障をきたし、使用が不可能にな
ることがある。また、ベースフィルムの変形によって感
光層にクラックが発生し画像品質を著しく低下させる。Before the leading edge of the transfer paper 2 traces the downward line, the fixing device 6
Establish a starting point for fixation. That is, the photoconductor driven roller 1b and the fixing device 6 are brought close to each other. With this configuration, after the transfer paper 2 is separated from the photoconductor driven roller 1b, the transfer paper 2
is immediately fixed by the fixing device 6 without contacting any member other than the atmosphere, thereby preventing image disturbance from occurring. However, although image disturbance can be prevented by this method, as described above, it is necessary to bring the photoreceptor driven roller and the fixing device close to each other. As a result, the radiant heat from the fixing device causes the temperature of the photoconductor to rise significantly, and when the copier is used continuously for a long time, the temperature inside the machine also increases, causing the polyester film that forms the base of the photoconductor to deform due to heat. When the belt-shaped photoreceptor is raised, the circumference of the belt-like photoreceptor is extended, the photoreceptor becomes slack, and slips occur, which may impede the photoreceptor's drive and make it unusable. Furthermore, cracks occur in the photosensitive layer due to the deformation of the base film, significantly reducing image quality.
発明の目的
本発明の目的は分離チャージャーを用いることなくベル
ト状感光体から転写紙を分離させる構成の複写機におい
て、未定着トナー像の乱れを防止する画像乱れ防止装置
を提供するものである。OBJECTS OF THE INVENTION An object of the present invention is to provide an image disturbance prevention device for preventing disturbance of an unfixed toner image in a copying machine configured to separate a transfer paper from a belt-like photoreceptor without using a separation charger.
発明の構成
本発明の画像乱れ防止装置は転写後の転写紙が感光体か
ら分離する点と定着装置による定着開始点との中間域に
駆動手段を有する断熱板を配置し、前記転写紙が感光体
から分離する以前に前記断熱板を駆動して開放口を設け
、上記転写紙の剛性による直進性を利用して前記転写紙
が開放口を通過するように構成したことによシ、ベルト
状感光体に悪影響を与えないで画像乱れを防止すること
ができるものである。Structure of the Invention The image disturbance prevention device of the present invention includes a heat insulating plate having a driving means disposed in an intermediate region between the point at which the transfer paper separates from the photoreceptor after transfer and the point at which fixing by the fixing device starts. Before separation from the body, the heat insulating plate is driven to provide an opening, and the transfer paper passes through the opening by utilizing the straightness of the transfer paper due to its rigidity. It is possible to prevent image disturbance without adversely affecting the photoreceptor.
実施例の説明
以下、本発明の一実施例について図面を参照しながら説
明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
第３図は本発明の画像乱れ防止装置を適用した複写機の
構成を示すものである。第３図において、１はｏｐａの
ベルト状感光体（以下感光体と記す）、１ａは感光体駆
動ドラム、１ｂは感光体従動ローラー、２は転写紙、３
は転写ガイド、４は帯電および転写兼用チャージャー（
以下、チャージャーと記す）、６は定着装置、７は断熱
板、８は開巌口、９は断熱板７を駆動して開放口８を設
けるための電磁スイッチ、１ｏは断熱板が回転できるよ
うにした軸、１１は電磁スイッチと断熱板を連結したシ
ャフト、１２は転写紙２を収納しているカセット、１３
は送り出しローラー、１４は搬送ローラー対、１６は現
像器、１６は光学系のガラスフｙ′イバーレンズ１θａ
とランプ１６ｂを含む露光装置、１７はクリーニング装
置、１８は感光体除電ランプ、１９は排紙トレイである
。FIG. 3 shows the configuration of a copying machine to which the image disturbance prevention device of the present invention is applied. In FIG. 3, 1 is an opa belt-shaped photoreceptor (hereinafter referred to as photoreceptor), 1a is a photoreceptor driving drum, 1b is a photoreceptor driven roller, 2 is a transfer paper, and 3
is a transfer guide, 4 is a charging and transfer charger (
6 is a fixing device, 7 is a heat insulating plate, 8 is an opening, 9 is an electromagnetic switch for driving the heat insulating plate 7 to provide an opening 8, and 1o is for rotating the heat insulating plate. 11 is a shaft connecting an electromagnetic switch and a heat insulating plate, 12 is a cassette storing transfer paper 2, 13
14 is a pair of transport rollers, 16 is a developing device, and 16 is a glass fiber lens 1θa of the optical system.
and a lamp 16b, 17 is a cleaning device, 18 is a photoreceptor static elimination lamp, and 19 is a paper discharge tray.
以上のように構成された本実施例の画像乱れ防止装置に
ついて、以下その動作を説明する。The operation of the image distortion prevention device of this embodiment configured as described above will be described below.
第４図において破線で示された転写紙２は搬送ローラー
対１４によって転写ガイド３に送られる。The transfer paper 2 indicated by a broken line in FIG. 4 is sent to the transfer guide 3 by a pair of transport rollers 14.
次に転写紙２は感光体１に導、びかれて静電的に密着し
、感光体１の表面に形成されたトナー像をチャージャー
４によって転写される。転写紙２と感光体１が同速度で
進行して転写紙２の先端が感光体従動ローラー１ｂに到
達し、感光体１の曲率の０
変化と転写紙２の剛性により前記転写紙２が感光体１の
変化に追従できず、感光体従動ローラー１ｂにおいて転
写紙２の先端が感光体１から分離して直線的に進行する
。さらに転写紙２が進行すると第６図に示すように酸化
ジルコニウムのセラミックから成る断熱板子が電磁スイ
ッチ９とシャフト１１および軸１ｏによって駆動され開
放口８を設けているところに到達し、転写紙２の剛性に
よる直進により大気以外の部材に接触することなく、直
接定着装置６で定着されるものであり、画像乱れが発生
せずに複写できるものである。なお、電磁スイッチ９が
作動して断熱板７によって開放口８が設けられるのは電
気回路による処理によって転写後の転写紙２の先端が感
光体従動ローラー１ｂに到達する直前に前記開放口８が
設けられ、転写紙２の後端が定着装置６によって定着終
了後、ただちに前記明放口ａＨ閉じられるものである。Next, the transfer paper 2 is guided to the photoreceptor 1 and brought into electrostatic contact with the photoreceptor 1, and the toner image formed on the surface of the photoreceptor 1 is transferred by the charger 4. The transfer paper 2 and the photoconductor 1 advance at the same speed, and the leading edge of the transfer paper 2 reaches the photoconductor driven roller 1b. The leading edge of the transfer paper 2 is separated from the photoreceptor 1 at the photoreceptor driven roller 1b and moves linearly because it is unable to follow the change in the transfer sheet 1. As the transfer paper 2 further advances, as shown in FIG. 6, a heat insulating plate made of zirconium oxide ceramic is driven by an electromagnetic switch 9, a shaft 11, and a shaft 1o, and reaches a place where an opening 8 is provided, and the transfer paper 2 Due to the rigidity of the image, the image is directly fixed by the fixing device 6 without coming into contact with any member other than the atmosphere, and the image can be copied without image disturbance. The reason why the electromagnetic switch 9 is activated and the opening 8 is provided by the heat insulating plate 7 is because the opening 8 is opened just before the leading edge of the transfer paper 2 after transfer reaches the photoreceptor driven roller 1b due to processing by an electric circuit. The opening aH is immediately closed after the rear end of the transfer paper 2 is fixed by the fixing device 6.
したがって複写待機のときには断熱板により定着装置の
感光体側を完全にふさいでいるため、感光体従動ローラ
ー部において停止している感光体へ直接輻射熱が当たる
ことがなくなった。また、断熱板が開いて開放口を設け
ているときは前記開放口を転写紙が通過中であり転写紙
が感光体を覆っている状態であり、転写紙が断熱板の役
目を果しているもので、定着装置からの熱が感光体に与
える悪影響が除去され、しかも画像乱れのない高品質の
複写画像が得られるようになった。Therefore, when copying is on standby, the photoconductor side of the fixing device is completely covered by the heat insulating plate, so that radiant heat is no longer directly applied to the photoconductor stopped at the photoconductor driven roller section. Furthermore, when the heat insulating plate is open and an opening is provided, the transfer paper is passing through the open aperture and is covering the photoreceptor, and the transfer paper is functioning as a heat insulating plate. This eliminates the adverse effects of heat from the fixing device on the photoreceptor, and makes it possible to obtain high-quality copied images without image distortion.
発明の効果
以上の説明から明らかなように、本発明は複写画像の乱
れを防止する装置として、転写後の転写紙が感光体から
分離する点と定着装置による定着開始点との中間域に駆
動手段を有する断熱板を配置し、前記転写紙が感光体か
ら分離する以前に前記断熱板を駆動して開放口を設け、
上記転写紙の剛性による直進性を利用して前記転写紙が
開放口を通過するように構成したことにより、ベルト状
感光体に悪影響を与えないで、画像乱れを防止すること
ができるもので、その効果は大である。Effects of the Invention As is clear from the above explanation, the present invention is a device for preventing disturbances in a copied image by driving the transfer paper to an intermediate region between the point where the transfer paper separates from the photoreceptor after transfer and the point at which fixing by the fixing device starts. disposing a heat insulating plate having a means, and driving the heat insulating plate to provide an opening before the transfer paper is separated from the photoreceptor;
By utilizing the straightness of the transfer paper due to its rigidity to allow the transfer paper to pass through the open opening, it is possible to prevent image disturbances without adversely affecting the belt-shaped photoreceptor. The effect is great.
第１図、第２図は従来例を示す側面図、第３図は本発明
を適用した一実施例の複写機を示す側面図、第４図は第
３図の一部側面図、第６図は第４ｉ図の一部拡大図であ
る。
１・・・・・ベルト状感光体、１ｂ・・・・・感光体従
動ローラー、２・・・・・・転写紙、６・・・・・・定
着装置、７・・・・・・断熱板、８・・・・・・開放口
、９・・・・・・電磁スイッチ、１０・・・・・・軸、
１１・・・・・・シャフト。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第３図
１
第４図1 and 2 are side views showing a conventional example, FIG. 3 is a side view showing an embodiment of a copying machine to which the present invention is applied, FIG. 4 is a partial side view of FIG. 3, and FIG. The figure is a partially enlarged view of FIG. 4i. 1... Belt-shaped photoconductor, 1b... Photoconductor driven roller, 2... Transfer paper, 6... Fixing device, 7... Heat insulation Plate, 8...Open port, 9...Electromagnetic switch, 10...Shaft,
11...Shaft. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3 Figure 1 Figure 4
Claims (1)
る定着開始点との中間域に駆動手段を有する断熱板を配
置し、前記転写紙が感光体から分離する以前に前記断熱
板を駆動して開放口を設け、上記転写紙の剛性による直
進性を利用して前記転写紙が開放口を通過するように構
成した画像乱れ防止装置。A heat insulating plate having a driving means is arranged in an intermediate region between the point where the transfer paper separates from the photoreceptor after transfer and the fixing start point by the fixing device, and the heat insulating plate is driven before the transfer paper separates from the photoreceptor. An image disturbance prevention device, wherein an opening is provided, and the transfer paper is configured to pass through the opening by utilizing straightness due to the rigidity of the transfer paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59030501A JPS60173559A (en) | 1984-02-20 | 1984-02-20 | Picture disorder preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59030501A JPS60173559A (en) | 1984-02-20 | 1984-02-20 | Picture disorder preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60173559A true JPS60173559A (en) | 1985-09-06 |
Family
ID=12305564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59030501A Pending JPS60173559A (en) | 1984-02-20 | 1984-02-20 | Picture disorder preventing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60173559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019086612A (en) * | 2017-11-06 | 2019-06-06 | 富士ゼロックス株式会社 | Image forming apparatus and heat-blocking components used for the same |
-
1984
- 1984-02-20 JP JP59030501A patent/JPS60173559A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019086612A (en) * | 2017-11-06 | 2019-06-06 | 富士ゼロックス株式会社 | Image forming apparatus and heat-blocking components used for the same |
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