JPH04194886A - Transfer device - Google Patents
Transfer deviceInfo
- Publication number
- JPH04194886A JPH04194886A JP31882190A JP31882190A JPH04194886A JP H04194886 A JPH04194886 A JP H04194886A JP 31882190 A JP31882190 A JP 31882190A JP 31882190 A JP31882190 A JP 31882190A JP H04194886 A JPH04194886 A JP H04194886A
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- roller
- transfer roller
- latent image
- image carrier
- 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
- 239000000463 material Substances 0.000 abstract description 20
- 238000004140 cleaning Methods 0.000 abstract description 13
- 239000000956 alloy Substances 0.000 abstract description 4
- 229910045601 alloy Inorganic materials 0.000 abstract description 4
- 230000005684 electric field Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000007769 metal material Substances 0.000 abstract description 2
- 230000008719 thickening Effects 0.000 abstract description 2
- 238000013518 transcription Methods 0.000 abstract 1
- 230000035897 transcription Effects 0.000 abstract 1
- 229920001971 elastomer Polymers 0.000 description 10
- 239000006229 carbon black Substances 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、電子写真プロセスにおける転写装置に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transfer device in an electrophotographic process.
［従来の技術］
従来の転写装置は、移動する潜像担持体とこれに対向さ
せた転写ローラーとの間に転写材を通し、転写ローラー
に現像トナーと逆極性のバイアス電圧を印加して、潜像
担持体上の現像画像を転写材に転写するようにしたもの
であり、転写ローラーに転写電流を流すため、転写ロー
ラーは例えば比抵抗１０６Ω■程度の導電性を有してい
る必要があった。また、転写ローラーが潜像担持体に直
接接触、あるいは圧接されても潜像担持体を傷つけない
ために、転写ローラーは弾性体で形成されている必要が
あった。従って従来技術では、このような導電性と弾性
という特性をともに満たすために、転写ローラーは導電
性ゴムによって形成されていた。[Prior Art] A conventional transfer device passes a transfer material between a moving latent image carrier and a transfer roller opposed to the latent image carrier, and applies a bias voltage of opposite polarity to the developing toner to the transfer roller. It is designed to transfer the developed image on the latent image carrier to a transfer material, and in order to pass a transfer current through the transfer roller, the transfer roller must have electrical conductivity, for example, with a specific resistance of about 106 Ω■. Ta. Furthermore, the transfer roller needs to be made of an elastic material so as not to damage the latent image carrier even if the transfer roller comes into direct contact or pressure contact with the latent image carrier. Therefore, in the prior art, the transfer roller was formed of conductive rubber in order to satisfy both the characteristics of conductivity and elasticity.
［発明が解決しようとする課題］
しかし、前述の従来技術では、導電性ゴムにおいて次の
ような課題があった。[Problems to be Solved by the Invention] However, the above-mentioned prior art had the following problems with the conductive rubber.
第一に、ゴムにおいて導電性を得るためには、一般に導
電性カーボンブラックのような導電性粒子を多く入れる
必要がある。第２図はカーボンブラックの配合量に対す
るゴムの抵抗値の一般的な特性を示す関係図であるが、
１０５〜１０１２Ω印の領域はカーボンブラック配合量
によって顕著に抵抗値が変化することを示している。つ
まり、抵抗値が１０５〜１０１２Ω印程度のゴムはカー
ボンブラック配合量と抵抗値との特性上、狙った抵抗値
を安定して得ることが難しく、歩留まりが上がらない。First, in order to obtain conductivity in rubber, it is generally necessary to incorporate a large amount of conductive particles such as conductive carbon black. Figure 2 is a relationship diagram showing the general characteristics of the resistance value of rubber with respect to the amount of carbon black blended.
The region marked with 105 to 1012 Ω shows that the resistance value changes significantly depending on the amount of carbon black blended. In other words, with rubber having a resistance value of about 10 5 to 10 12 Ω, it is difficult to stably obtain the desired resistance value due to the characteristics of the amount of carbon black blended and the resistance value, and the yield is not increased.
また、ゴムはカーボンブラック！が多いほど硬度が硬く
なり、導電性ゴムとしてはゴム硬度は４０度よりも軟ら
かくすることは難しい。Also, the rubber is carbon black! The higher the number, the harder the hardness becomes, and it is difficult to make the rubber hardness softer than 40 degrees as a conductive rubber.
第二に、弾性を得るために可塑剤を用いてゴムを軟らか
くすることが可能だが、可塑剤は装置の画像品質を劣化
させる要因になることがあるため、可塑剤の量はできる
限り減らしたい。Second, it is possible to use plasticizers to soften rubber in order to obtain elasticity, but plasticizers can be a factor in deteriorating the image quality of the device, so the amount of plasticizers should be reduced as much as possible. .
第三に、弾性材料であると表面が粗であることが多く摩
擦抵抗が高いため、転写ローラーに付着したトナー等の
クリーニングは困難であり、しかも摩耗が避けられない
ため表面状態が経時的に変化することを避けられず、そ
のために潜像担持体や転写材との接触状態が変化してし
まう。Thirdly, elastic materials often have rough surfaces and high frictional resistance, making it difficult to clean toner adhering to the transfer roller.Furthermore, wear is unavoidable, so the surface condition deteriorates over time. This cannot be avoided, and as a result, the state of contact with the latent image carrier and the transfer material changes.
第四に、画像の乱れ、中抜は等を防止するためには硬度
を下げたり、押圧力を小さくしたりする必要があるが、
逆に転写材の搬送が不安定となり、画像品質を劣化させ
る要因となってしまう。Fourth, in order to prevent image distortion, hollow spots, etc., it is necessary to lower the hardness and reduce the pressing force.
On the other hand, the conveyance of the transfer material becomes unstable, which causes deterioration of image quality.
本発明はこのような問題点を解決するもので、その目的
とするところは、安定した、高画像品質の転写装置を提
供することにある。The present invention is intended to solve these problems, and its purpose is to provide a stable transfer device with high image quality.
［課題を解決するための手段］
本発明の転写装置は、転写ローラーが少なくとも弾性体
と薄肉管状部材により形成されることを特徴とする。[Means for Solving the Problems] The transfer device of the present invention is characterized in that the transfer roller is formed of at least an elastic body and a thin tubular member.
また、本発明の転写装置は、前記薄肉管状部材がシーム
レスであることを特徴とする。Further, the transfer device of the present invention is characterized in that the thin-walled tubular member is seamless.
［作用］
本発明の上記の構成によれば、転写ローラーを少なくと
も薄肉管状部材と弾性体により形成しているため、潜像
担持体と転写材の密着性が良好であり、転写ローラーと
潜像担持体が直接接触する場合でも潜像担持体を損傷せ
ず、転写ローラー自身も潜像担持体あるいは転写材との
接触によって摩耗することがない。従って、常に安定し
た転写が可能となる。また、薄肉管状部材を金属、ある
いは合金によって形成することにより、導電性は全く容
易に得られるため転写電界が位置によらず一定となり、
転写前後で像が太ったり、飛散することが減少し、解像
度が向上する。弾性体は密着性を増すために十分に軟ら
かいことが望ましく、スポンジ等の発泡材料が好適であ
り、スポンジ等を用いることにより、潜像担持体に圧接
するために不必要に大きな荷重をかけなくとも安定した
低い転写圧で十分な接触状態が得られ、中抜は等の発生
をなくすことができる。[Function] According to the above configuration of the present invention, since the transfer roller is formed of at least the thin tubular member and the elastic body, the adhesion between the latent image carrier and the transfer material is good, and the transfer roller and the latent image are Even when the carrier comes into direct contact with the latent image carrier, the latent image carrier is not damaged, and the transfer roller itself is not worn out due to contact with the latent image carrier or the transfer material. Therefore, stable transfer is always possible. In addition, by forming the thin tubular member from metal or alloy, conductivity can be easily obtained, so the transfer electric field is constant regardless of the position.
Image thickening and scattering before and after transfer are reduced, and resolution is improved. It is desirable that the elastic body is sufficiently soft to increase adhesion, and a foamed material such as a sponge is suitable.By using a sponge, etc., it is possible to avoid applying an unnecessarily large load to press the latent image carrier. A sufficient contact condition can be obtained with a stable and low transfer pressure, and the occurrence of hollow holes etc. can be eliminated.
また、表面が平滑であるため転写ローラーのクリーニン
グはきわめて容易であり、汚れのない出力が得られると
共に、クリーニング手段の負荷も少なくて済む０表面に
は高抵抗層等の機能層が容易に形成できるため、潜像担
持体との間の放電、潜像担持体への電荷注入等を防止す
ることも可能である。さらに、薄肉管状部材はシームレ
スに形成できるため、円周方向における特性がほとんど
変化しない、従って、安定した転写動作が可能となり、
高い画像品質の装置を提供することができ以下、実施例
により本発明の詳細な説明する。In addition, since the surface is smooth, cleaning the transfer roller is extremely easy, resulting in clean output and requiring less load on the cleaning means.Functional layers such as high-resistance layers can be easily formed on the surface. Therefore, it is also possible to prevent discharge between the latent image carrier and charge injection into the latent image carrier. Furthermore, since the thin-walled tubular member can be formed seamlessly, its characteristics in the circumferential direction hardly change, thus enabling stable transfer operation.
The present invention can be provided with an apparatus of high image quality.The present invention will be described in detail below using examples.
［実施例］
第１図は本発明の実施例における転写装置の要部断面概
観図である。移動する潜像担持体１とこれに対向させた
転写ローラー５との間に転写材３を通し、転写バイアス
印加手段４により転写ローラー５に現像トナー２と逆極
性のバイアス電圧を印加して、潜像担持体１上の現像画
像を転写材２に転写するようにしたものである。転写ロ
ーラー５は、シャフト５３の周囲にローラー状に形成し
た弾性体５１を薄肉管状部材５２に挿入したものであり
、クリーニング手段６は転写ローラーをクリーニングす
るために設けたウレタン製のブレードである。[Embodiment] FIG. 1 is a cross-sectional schematic view of the main parts of a transfer device in an embodiment of the present invention. A transfer material 3 is passed between a moving latent image carrier 1 and a transfer roller 5 opposed thereto, and a bias voltage having a polarity opposite to that of the developing toner 2 is applied to the transfer roller 5 by a transfer bias applying means 4. The developed image on the latent image carrier 1 is transferred to the transfer material 2. The transfer roller 5 is constructed by inserting an elastic body 51 shaped like a roller around a shaft 53 into a thin tubular member 52, and the cleaning means 6 is a urethane blade provided for cleaning the transfer roller.
本発明においては、転写ローラー５については弾性体５
１と薄肉管状部材５２により形成しているため、潜像担
持体１と転写材３との密着性が良好であり、潜像担持体
１を損傷することがなく、転写ローラー５自身も摩耗す
ることがない。薄肉管状部材５２については金属あるい
は合金により肉厚数１０ミクロン程度に形成して、柔軟
性に富ませ、転写材３に十分密着させることが可能であ
り、また、金属材料を用いれば導電性を得ることは全く
容易であるため転写電界が位置によらず一定となり、転
写前後で像が太ったり、飛散することが減少し、解像度
が向上する。In the present invention, as for the transfer roller 5, the elastic body 5
1 and the thin-walled tubular member 52, the adhesion between the latent image carrier 1 and the transfer material 3 is good, the latent image carrier 1 is not damaged, and the transfer roller 5 itself is not worn out. Never. The thin-walled tubular member 52 can be made of metal or alloy to have a wall thickness of about 10 microns, making it highly flexible and able to adhere sufficiently to the transfer material 3. Also, if a metal material is used, conductivity can be improved. Since it is completely easy to obtain, the transfer electric field is constant regardless of the position, and the image becomes thicker and less likely to scatter before and after transfer, and the resolution is improved.
弾性体５１は密着性を増すために十分に軟らかいことが
望ましく、スポンジ等の発泡材料が好適である。スポン
ジ等を用いることにより、潜像担持体に圧接するために
不必要に大きな荷重をかけなくとも安定した低い転写圧
で十分な接触状態が得られ、中抜は等の発生をなくすこ
とができる。It is desirable that the elastic body 51 be sufficiently soft to increase adhesion, and a foamed material such as sponge is suitable. By using a sponge or the like, it is possible to obtain a sufficient contact state with a stable and low transfer pressure without applying an unnecessarily large load to press the latent image carrier, and it is possible to eliminate hollow spots etc. .
弾性体５１の表面粗さを適度につけて、表面摩擦抵抗に
より弾性体５１と薄肉管状部材５２とのスリップを防止
することも可能である。It is also possible to appropriately roughen the surface of the elastic body 51 to prevent slippage between the elastic body 51 and the thin tubular member 52 due to surface frictional resistance.
本発明の実施例における転写ローラーは表面が平滑であ
るため、転写ローラーのクリーニングは極めて容易であ
る。クリーニングには第１図において示したようなブレ
ードクリーニングの他に、ファーブラシクリーニング等
の公知の手段を用いることができる。さらに、潜像担持
体のクリーニングを転写ローラーで行ってもよく、潜像
担持体のクリーニング装置を省略することも可能であり
、装置を小型化、低コスト化することができる。転写ロ
ーラーのクリーニングは、転写ローラーからのトナーの
離型性の良さを利用して、バイアス印加により潜像担持
体にトナーを付着させることにより行うこともでき、こ
のときは潜像担持体のクリーニングを行った後に転写ロ
ーラーのクリーニングを行うと良い。もちろん、クリー
ニングに関しては本記述に制限されることなく、他の方
法を用いてもよいことはいうまでもない。Since the transfer roller in the embodiment of the present invention has a smooth surface, cleaning of the transfer roller is extremely easy. In addition to blade cleaning as shown in FIG. 1, known means such as fur brush cleaning can be used for cleaning. Further, the latent image carrier may be cleaned by a transfer roller, and the cleaning device for the latent image carrier may be omitted, making it possible to downsize and reduce the cost of the apparatus. The transfer roller can also be cleaned by making use of the good releasability of the toner from the transfer roller and applying a bias to attach the toner to the latent image carrier.In this case, cleaning the latent image carrier It is a good idea to clean the transfer roller after doing this. Of course, cleaning is not limited to this description, and it goes without saying that other methods may be used.
本発明の転写ローラーを用いて、転写材として普通紙、
ボンド紙、再生紙に対して、１００００枚の連続転写を
行ったところ、中抜けは発生せず転写効率は常に９０％
以上であり、解像度６００ＤＰＩのライン画像の転写に
よる線太りは最大１゜３倍であり、画像の乱れはほとん
ど発生せず、普通紙、再生紙においては６００ＤＰＩの
ラインペア画像はほとんどつぶれることなく転写できた
。Using the transfer roller of the present invention, plain paper,
When 10,000 sheets of continuous transfer were performed on bond paper and recycled paper, no voids occurred and the transfer efficiency was always 90%.
As described above, the line thickness due to the transfer of a line image with a resolution of 600 DPI is at most 1°3 times, and there is almost no image disturbance, and on plain paper or recycled paper, a line pair image with a resolution of 600 DPI can be transferred with almost no collapse. did it.
本発明の実施例においては、転写バイアスは２ｋＶ程度
と低電圧化できるため、電源の小型化により低コスト化
、低消費電力化が実現し易く、また、オゾンの発生を低
いレベルに抑えることができる。マイナス帯電トナーを
プラス電位の転写バイアスで転写する場合に、特にオゾ
ンの発生を減少させることができる。本発明の実施例で
は、オゾン温度０．ｌｐｐｍ以下が達成された。転写ロ
ーラーへのバイアス印加には種々の方法が考えられ、導
電性の薄肉管状部材に直接印加してもよいし、転写ロー
ラーのシャフトに対して印加してもよい。また、弾性体
の抵抗値は適宜設定すればよい。転写ローラーを潜像担
持体の除電に用いることも可能である。但し、潜像担持
体と転写ローラーが直接接触してしまう場合、転写ロー
ラーの表面抵抗が低すぎると潜像担持体と転写ローラー
の間で放電が発生したり、潜像担持体への電荷注入が起
きてしまう場合がある。その際は、転写ローラーの表面
が比抵抗１０１２Ωｍ以下の熱収縮チューブ等の高抵抗
導電性材料で覆われる構成をとることが望ましい。肉厚
は数１０〜数１００μｍとすれば、十分な可撓性が得ら
れ、転写材と十分かつ安定した密着状態を保つことがで
きる。また、転写電流が必要以上に流れないよう、公知
の過電流保護回路、素子、部材等を配置してもよい。In the embodiment of the present invention, the transfer bias voltage can be reduced to about 2 kV, so it is easy to reduce costs and power consumption by downsizing the power supply, and it is possible to suppress ozone generation to a low level. can. In particular, when negatively charged toner is transferred with a transfer bias of positive potential, ozone generation can be reduced. In the embodiment of the present invention, the ozone temperature is 0. lppm or less was achieved. Various methods can be considered for applying the bias to the transfer roller, and the bias may be applied directly to the conductive thin-walled tubular member or may be applied to the shaft of the transfer roller. Further, the resistance value of the elastic body may be set appropriately. It is also possible to use the transfer roller to eliminate static from the latent image carrier. However, if the latent image carrier and the transfer roller come into direct contact, if the surface resistance of the transfer roller is too low, electrical discharge may occur between the latent image carrier and the transfer roller, or charge may be injected into the latent image carrier. may occur. In this case, it is desirable that the surface of the transfer roller be covered with a high-resistance conductive material such as a heat-shrink tube having a specific resistance of 1012 Ωm or less. If the thickness is several tens to several hundreds of micrometers, sufficient flexibility can be obtained and sufficient and stable adhesion to the transfer material can be maintained. Further, a known overcurrent protection circuit, element, member, etc. may be arranged to prevent the transfer current from flowing more than necessary.
本発明においては、転写ローラーに用いる弾性体の表面
は滑らかである必要がなく、スポンジ等の発泡材が適し
ており、例えば、ポリウレタンフォーム、ポリスチレン
フオーム、ポリエチレンフオーム、フオームラバー等を
、単泡あるいは連泡に形成して用いることができる。In the present invention, the surface of the elastic body used for the transfer roller does not need to be smooth, and foamed materials such as sponge are suitable.For example, polyurethane foam, polystyrene foam, polyethylene foam, foam rubber, etc. It can be used by forming open cells.
また、本発明においては、薄肉管状部材の肉厚は２０〜
６０μｍ程度が適当であるが、必ずしもこれに限定され
るものではなく、また、薄肉管状部材の材料は、Ｃｕ、
Ｎｉ、 Ｃｒ、 Ａｕ、 Ａｇ、Ｚｎ、Ｃｄ
、Ｐｂ、Ｓｎ、Ｆｅ等の金属もしくはこれらの元素を含
む合金を用いることができる。Further, in the present invention, the wall thickness of the thin-walled tubular member is 20 to 20 mm.
Appropriately, the thickness is about 60 μm, but it is not necessarily limited to this, and the material of the thin tubular member may be Cu,
Ni, Cr, Au, Ag, Zn, Cd
, Pb, Sn, Fe, or an alloy containing these elements can be used.
上記のような材料、例えばＮｉを用い、電訪法により薄
肉管状部材を形成すれば、薄肉管状部材は継目の無い、
いわゆるシームレスとなり、転写動作中における特性の
不連続さを全く排除できるため、常に安定した高画像品
質を実現できる。If a thin-walled tubular member is formed using the above-mentioned material, such as Ni, by the electric method, the thin-walled tubular member will be seamless.
This is so-called seamless, and any discontinuity in characteristics during the transfer operation can be completely eliminated, making it possible to always achieve stable high image quality.
尚、実施例では転写ローラーの駆動については特に述べ
なかったが、転写ローラーは潜像担持体あるいは転写材
に従動させても、独立に駆動させてもよい。また、実施
例は転写ローラーにバイアスを印加するいわゆるバイア
ス転写について示したが、本発明の転写ローラーを用い
て圧力転写、あるいは粘着転写を行うよう装置を構成し
てもよい。Although the driving of the transfer roller is not particularly described in the embodiments, the transfer roller may be driven by the latent image carrier or the transfer material, or may be driven independently. Furthermore, although the embodiments have been described with respect to so-called bias transfer in which a bias is applied to the transfer roller, an apparatus may be configured to perform pressure transfer or adhesive transfer using the transfer roller of the present invention.
［発明の効果］
以上述べたように本発明によれば、転写ローラーを少な
くとも薄肉管状部材と弾性体により形成しているため、
中抜は等の発生がなく、解像度の高い安定した転写動作
が可能となり、高い画像品質の転写装置を提供すること
ができ、小型、低コスト、低消費電力で、安全性が高く
、オゾンの発生の少ない転写装置が実現できるという効
果を有する。[Effects of the Invention] As described above, according to the present invention, since the transfer roller is formed of at least a thin tubular member and an elastic body,
There is no hollowing out, stable transfer operation with high resolution is possible, and we can provide a transfer device with high image quality.It is small, low cost, low power consumption, highly safe, and ozone free. This has the effect of realizing a transfer device with fewer occurrences.
第１図は本発明の実施例における転写装置の要部断面概
観図、第２図はカーボンブラックの配合量に対するゴム
の抵抗値の一般的な特性を示す関係図。
５ ： 転写ローラー
５１ ： 弾性体
５２ ： 薄肉管状部材
５３ ： シャフト
以 上
出願人 セイコーエプソン株式会社
代理人 弁理士 鈴木 喜三部（ｆｌ！！１名）第２図FIG. 1 is a schematic cross-sectional view of a main part of a transfer device according to an embodiment of the present invention, and FIG. 2 is a relationship diagram showing general characteristics of the resistance value of rubber with respect to the amount of carbon black blended. 5: Transfer roller 51: Elastic body 52: Thin tubular member 53: Above the shaft Applicant: Seiko Epson Corporation Representative Patent attorney: Kizobe Suzuki (fl!! 1 person) Figure 2
Claims (2)
により形成されることを特徴とする転写装置。(1) A transfer device characterized in that the transfer roller is formed of at least an elastic body and a thin tubular member.
とする請求項１記載の転写装置。(2) The transfer device according to claim 1, wherein the thin-walled tubular member is seamless.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31882190A JPH04194886A (en) | 1990-11-22 | 1990-11-22 | Transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31882190A JPH04194886A (en) | 1990-11-22 | 1990-11-22 | Transfer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04194886A true JPH04194886A (en) | 1992-07-14 |
Family
ID=18103330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31882190A Pending JPH04194886A (en) | 1990-11-22 | 1990-11-22 | Transfer device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04194886A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0592197A2 (en) * | 1992-10-06 | 1994-04-13 | Matsushita Electric Industrial Co., Ltd. | Image-transferring device |
-
1990
- 1990-11-22 JP JP31882190A patent/JPH04194886A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0592197A2 (en) * | 1992-10-06 | 1994-04-13 | Matsushita Electric Industrial Co., Ltd. | Image-transferring device |
| EP0592197A3 (en) * | 1992-10-06 | 1994-06-08 | Matsushita Electric Ind Co Ltd | Image-transferring device |
| US5440379A (en) * | 1992-10-06 | 1995-08-08 | Matsushita Electric Industrial Co., Ltd. | Image transfer device with cleaner for electrophotographic copying |
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