JPH08227237A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPH08227237A JPH08227237A JP3361395A JP3361395A JPH08227237A JP H08227237 A JPH08227237 A JP H08227237A JP 3361395 A JP3361395 A JP 3361395A JP 3361395 A JP3361395 A JP 3361395A JP H08227237 A JPH08227237 A JP H08227237A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- shaped
- image forming
- image carrier
- latent image
- 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.)
- Granted
Links
- 239000007787 solid Substances 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims description 49
- 238000012546 transfer Methods 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 108091008695 photoreceptors Proteins 0.000 abstract description 16
- 230000003287 optical effect Effects 0.000 abstract description 11
- 230000003068 static effect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000010408 film Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008646 thermal stress Effects 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000003504 photosensitizing agent Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000003578 releasing effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は画像形成装置に関し、特
にレーザプリンタ、ＬＥＤプリンタ等の電子写真方式を
使用する画像形成装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus, and more particularly to an image forming apparatus using an electrophotographic system such as a laser printer or an LED printer.
【０００２】[0002]
【従来の技術】従来、この種の電子写真方式を用いた画
像形成装置は、いわゆるカールソン法が一般的であり、
静電潜像形成体である感光体に対して帯電・露光・現像
が行なわれ、感光体面上現像像を記録媒体へ転写、その
後記録媒体上現像剤を定着させ画像形成させるものであ
る。また、感光体面上に形成された現像像をベルト状の
中間転写担持体に転写し、中間転写担持体上の画像を記
録媒体へ転写・同時定着させ、画像形成させるものが特
開平５−７２９１７号公報に紹介されている。さらに、
同様の方式によるカラー電子写真装置の構成が特開平４
−３７２９７２号公報に示されている。両装置共にライ
ン状固体発熱体を用いて定着部を構成するものが示され
ている。さらにまた、特開平３−５４５８５号公報には
ベルト状感光体内に発熱体が配設され、感光体上に形成
された現像像を記録媒体へ転写すると同時に定着させる
ものが提案されている。さらにまた、特開平４−１８１
９６１号公報では静電潜像形成体に形成した静電潜像を
フィルムに潜像転写させ、その後フィルム上に現像像を
形成しフィルム上現像像を記録媒体へ２つのローラから
構成される熱定着部を通過させることで転写定着させ、
画像形成させるものが提案されている。2. Description of the Related Art Conventionally, a so-called Carlson method is generally used in an image forming apparatus using this type of electrophotography.
A photosensitive body, which is an electrostatic latent image forming body, is charged, exposed, and developed, the developed image on the surface of the photosensitive body is transferred to a recording medium, and then the developer on the recording medium is fixed to form an image. Further, there is one in which a developed image formed on the surface of a photoreceptor is transferred to a belt-shaped intermediate transfer carrier, and the image on the intermediate transfer carrier is transferred and simultaneously fixed on a recording medium to form an image. It is introduced in the Gazette. further,
A configuration of a color electrophotographic apparatus using a similar system is disclosed in Japanese Patent Laid-Open No.
No. 3,729,72. In both devices, a fixing unit is shown using a line-shaped solid heating element. Further, Japanese Patent Laid-Open No. 3-54585 proposes a heating element provided in a belt-shaped photoconductor to transfer and fix a developed image formed on the photoconductor onto a recording medium. Furthermore, JP-A-4-181
In Japanese Patent Publication No. 961), an electrostatic latent image formed on an electrostatic latent image forming body is transferred to a film as a latent image, and then a developed image is formed on the film, and the developed image on the film is transferred to a recording medium by a heat roller composed of two rollers. Transfer and fix by passing through the fixing unit,
A device for forming an image has been proposed.
【０００３】[0003]
【発明が解決しようとする課題】ところが従来技術によ
るものでは次のような課題がある。まず、一般的に用い
られているカールソン法によるものでは、たとえば静電
潜像形成体である感光体の周りに多くのプロセスを配設
させ、かつ定着部を配設させるための全体が横長の構成
となり小型化しずらいという課題がある。そこで静電潜
像形成体横側で記録媒体に転写させ静電潜像形成体配設
上方に定着部を配設させた構成もあるが、単に横長を縦
長にしたのみでかえって設置安定性に欠けることなどの
課題がある。特開平５−７２９１７号公報にあっては、
感光体駆動の外に中間転写担持体の駆動系による原価
高、現像像の２回転写による画像劣化および小型化の困
難性などの課題がある。特開平４−３７２９７２号公報
にあっても、同様の課題があげられる。特開平３−５４
５８５号公報にあっては、感光体が直接過熱されること
で感光体の特性変化、信頼性問題、ベルト駆動用ローラ
群の配設による複雑メカ系などの課題がある。また、小
型化にも疑問がある。特開平４−１８１９６１号公報で
は、静電潜像形成体表面が保護され長寿命使用出来る利
点があるものの、巻取りフィルムを用いることで駆動・
装置サイズに課題がある。もしエンドレスフィルムを用
いたにしてもヒートローラによりフィルムが過熱され静
電潜像形成体へ影響し、特性変化、信頼性に課題があ
る。However, the conventional technique has the following problems. First, according to the generally used Carlson method, for example, many processes are arranged around a photoconductor, which is an electrostatic latent image forming member, and a fixing unit is arranged in a horizontally long whole. However, there is a problem that it is difficult to miniaturize due to the configuration. Therefore, there is a configuration in which the electrostatic latent image forming body is transferred to the recording medium on the lateral side and the fixing unit is arranged above the electrostatic latent image forming body, but it is possible to improve the installation stability by simply making the laterally long portrait. There are problems such as lacking. In Japanese Patent Laid-Open No. 5-72917,
In addition to driving the photosensitive member, there are problems such as high cost due to the drive system of the intermediate transfer carrier, image deterioration due to double transfer of the developed image, and difficulty in downsizing. Even in Japanese Patent Laid-Open No. 4-372972, the same problem can be raised. JP-A-3-54
In Japanese Patent No. 585, there are problems such as characteristic changes of the photoconductor due to direct overheating of the photoconductor, reliability problems, and complicated mechanical system due to arrangement of belt driving roller groups. There is also a question about miniaturization. In Japanese Patent Laid-Open No. 4-181961, there is an advantage that the surface of the electrostatic latent image forming body is protected and a long life can be used, but it is possible to drive by using a winding film.
There is a problem with the device size. Even if the endless film is used, the film is overheated by the heat roller and affects the electrostatic latent image forming body, and there are problems in characteristic changes and reliability.
【０００４】[0004]
【課題を解決するための手段】本発明の画像形成装置
は、静電潜像形成体と、この静電潜像形成体を密着内接
するベルト状現像像担持体と、前記静電潜像形成体への
潜像形成手段と、前記ベルト状現像像担持体上に現像剤
を供給する現像器と、前記ベルト状現像像担持体内面に
密着し前記ベルト状現像像担持体上の前記現像剤を予備
加熱する第１のライン状固体発熱体と、前記ベルト状現
像像担持体内面に密着し前記第１のライン状固体発熱体
により予備加熱された前記現像剤を記録媒体に転写定着
する第２のライン状固体発熱体とを備える。SUMMARY OF THE INVENTION An image forming apparatus of the present invention comprises an electrostatic latent image forming member, a belt-shaped developing image carrier for intimately contacting the electrostatic latent image forming member, and the electrostatic latent image forming member. A latent image forming means for the body, a developing device for supplying a developer onto the belt-shaped developed image carrier, and a developer on the belt-shaped developed image carrier which is in close contact with the inner surface of the belt-shaped developed image carrier. A first linear solid heating element for preheating, and a developer which is in close contact with the inner surface of the belt-shaped developed image carrier and preheated by the first linear solid heating element onto a recording medium. 2 line-shaped solid heating elements.
【０００５】また、本発明の画像形成装置は、前記潜像
形成手段が、前記ベルト状現像像担持体の内側に配設さ
れていることを特徴とする。Further, the image forming apparatus of the present invention is characterized in that the latent image forming means is disposed inside the belt-shaped developed image carrier.
【０００６】さらに、本発明の画像形成装置は、前記潜
像形成手段が、前記ベルト状現像像担持体と前記静電潜
像形成体とが密着する位置にて潜像形成作用するように
前記ベルト状現像像担持体周辺に配設されていることを
特徴とする。Further, in the image forming apparatus of the present invention, the latent image forming means operates so as to form a latent image at a position where the belt-shaped developing image carrier and the electrostatic latent image forming body are in close contact with each other. It is characterized in that it is arranged around the belt-shaped developed image carrier.
【０００７】さらに、本発明の画像形成装置は、前記現
像器が、前記ベルト状現像像担持体と前記静電潜像形成
体とが密着する位置にて対向配設されていることを特徴
とする。Further, the image forming apparatus of the present invention is characterized in that the developing device is disposed so as to face each other at a position where the belt-shaped developed image bearing member and the electrostatic latent image forming member are in close contact with each other. To do.
【０００８】さらに、本発明の画像形成装置は、前記現
像器が、前記ベルト状現像像担持体と前記静電潜像形成
体とが密着する位置以外で前記ベルト状現像像担持体外
面と対向配設されていることを特徴とする。Further, in the image forming apparatus of the present invention, the developing device opposes the outer surface of the belt-shaped developed image carrier at a position other than the position where the belt-shaped developed image carrier and the electrostatic latent image former are in close contact with each other. It is characterized by being arranged.
【０００９】さらに、本発明の画像形成装置は、前記静
電潜像形成体が、ドラム状であることを特徴とする。Further, the image forming apparatus of the present invention is characterized in that the electrostatic latent image forming body is a drum shape.
【００１０】さらに、本発明の画像形成装置は、前記静
電潜像形成体が、ベルト状であることを特徴とする。Further, the image forming apparatus of the present invention is characterized in that the electrostatic latent image forming body is belt-shaped.
【００１１】[0011]
【作用】本発明の画像形成装置では、静電潜像形成体に
静電潜像を形成させ、その静電潜像形成体をベルト状現
像像担持体内面に密着させて静電潜像を転写し、現像器
より供給される現像剤でベルト状現像像担持体の静電潜
像を現像して現像像とし、ベルト状現像像担持体上の現
像像を第１のライン状固体発熱体で予備加熱させ、その
次に第２のライン状固体発熱体の位置にて記録媒体に現
像像を転写同時定着させる。In the image forming apparatus of the present invention, an electrostatic latent image is formed on the electrostatic latent image forming body, and the electrostatic latent image forming body is brought into close contact with the inner surface of the belt-shaped developed image carrying member to form the electrostatic latent image. The electrostatic latent image on the belt-shaped developed image carrier is transferred to a developer and developed into a developed image by the developer supplied from the developing device. Then, the developed image is transferred and fixed simultaneously on the recording medium at the position of the second linear solid heating element.
【００１２】また、本発明の画像形成装置では、ベルト
状現像像担持体内面に一部密着する静電潜像形成体に静
電潜像形成すると同時に、ベルト状現像像担持体にも静
電潜像を形成し、次に現像器にてベルト状現像像担持体
上に現像像を形成し、ベルト状現像像担持体上の現像像
を第１のライン状固体発熱体で予備加熱させ、その次に
第２のライン状固体発熱体の位置にて記録媒体に現像像
を転写同時定着させる。Further, in the image forming apparatus of the present invention, an electrostatic latent image is formed on the electrostatic latent image forming body which is in close contact with the inner surface of the belt-shaped developed image carrying body, and at the same time, the electrostatic latent image is also formed on the belt-shaped developed image carrying body. A latent image is formed, then a developed image is formed on the belt-shaped developed image carrier by a developing device, and the developed image on the belt-shaped developed image carrier is preheated by the first line-shaped solid heating element, Next, the developed image is transferred and fixed on the recording medium at the position of the second linear solid-state heating element.
【００１３】このように、共に第１のライン状固体発熱
体で現像像を形成している現像剤を予備加熱仮溶融状態
としておき、次に第２のライン状固体発熱体部分で記録
媒体へ転写同時定着させるようにしているため、従来か
らの一度に転写同時定着させるものと比べ発熱体・現像
像担持体への熱ストレスが低減され、それぞれの信頼性
が向上し、また仮溶融状態にされた現像像を記録媒体へ
転写し、また同時に定着させることで転写効率・チリの
ない画像品質定着性においても優れたものとなり、熱容
量のほとんどないベルト状現像像担持体の温度上昇も防
止出来、このことが次に静電潜像形成体と接する際に熱
的影響を与えず、安定した静電潜像形成が実行されるこ
とになる。As described above, the developer forming the developed image with the first linear solid heating element is preliminarily heated and preliminarily melted, and then the second linear solid heating element is transferred to the recording medium. Since transfer and fixing are performed at the same time, thermal stress on the heating element and the developing image bearing member is reduced compared to the conventional method of simultaneously fixing by transfer at the same time. By transferring the developed image to a recording medium and fixing it at the same time, it becomes excellent in transfer efficiency and image quality fixability without dust, and it is possible to prevent the temperature rise of the belt-shaped developed image carrier with almost no heat capacity. However, this does not exert a thermal influence on the next contact with the electrostatic latent image forming body, and stable electrostatic latent image formation is performed.
【００１４】[0014]
【実施例】次に、本発明について図面を参照して説明す
る。図１は本発明の第１の実施例の構成を示す図であ
る。図１を参照すると、この実施例の画像形成装置は、
静電潜像形成体であるドラム状感光体１と、このドラム
状感光体１表面と密着内接するベルト状現像像担持体２
と、ドラム状感光体１への潜像形成手段である帯電ロー
ラ８とＬＥＤ光学系３と、ベルト状現像像担持体２上に
現像剤を供給する現像器４と、ベルト状現像像担持体２
内面に密着しベルト状現像像担持体２上の現像剤を予備
加熱する第１のライン状固体発熱体５と、ベルト状現像
像担持体２内面に密着し第１のライン状固体発熱体５に
より予備加熱された現像剤を記録媒体１２に転写定着す
る第２のライン状固体発熱体６と、ベルト状現像像担持
体２表面の残留現像剤除去および残留電荷分布の除電均
一化を行なうクリーナ１０および除電器１１とから構成
される。Next, the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the configuration of the first embodiment of the present invention. Referring to FIG. 1, the image forming apparatus of this embodiment includes
A drum-shaped photosensitive member 1 which is an electrostatic latent image forming member, and a belt-shaped developed image carrier 2 which is in contact with and in contact with the surface of the drum-shaped photosensitive member 1.
A charging roller 8 which is means for forming a latent image on the drum-shaped photoreceptor 1, an LED optical system 3, a developing device 4 for supplying a developer onto the belt-shaped developed image carrier 2, and a belt-shaped developed image carrier. Two
A first line-shaped solid heating element 5 which is in close contact with the inner surface and preheats the developer on the belt-shaped development image carrier 2, and a first line-shaped solid heating element 5 which is in contact with the inner surface of the belt-shaped development image carrier 2. The second line-shaped solid-state heating element 6 for transferring and fixing the developer preheated by the recording medium 12, and a cleaner for removing the residual developer on the surface of the belt-shaped developed image carrier 2 and uniformizing the static elimination of the residual charge distribution. 10 and a static eliminator 11.
【００１５】静電潜像形成体であるドラム状感光体１
は、有機系感光剤（ＯＰＣ）あるいは無機系感光剤を表
面に形成している。ベルト状現像像担持体２は、ドラム
状感光体１の内面でその表面曲率にそって密着し、ドラ
ム状感光体１の回転移動と同速で回転移動する。ベルト
状現像像担持体２には、さらにその内面にて第１および
第２のライン状固体発熱体５および６が密着配設されて
おり、さらに回転移動支持用のアイドラテンションロー
ラ７も配設されている。ベルト状現像像担持体２内部に
は、静電潜像形成体であるドラム状感光体１への帯電を
行う帯電ローラ８および画像データに従って像露光しド
ラム状感光体１に静電潜像を形成させるためのライン状
ＬＥＤを有する潜像形成手段であるＬＥＤ光学系３が、
ドラム状感光体１の回転方向にそってドラム状感光体１
表面に密着または接近して配設されている。第２のライ
ン状固体発熱体６の位置する部分では、第２のライン状
固体発熱体６に対してベルト状現像像担持体２を介して
加圧ローラ９が回転可能にして圧接されている。また、
ベルト状現像像担持体２のドラム状感光体１とアイドラ
テンションローラ７で支持される間の部分のベルト状現
像像担持体２外面には、現像像形成のための現像剤をベ
ルト状現像像担持体２へ供給する現像器４が接近または
接触して配設されている。さらに同じくベルト状現像像
担持体２の第２のライン状固体発熱体６とドラム状感光
体１で支持される間の部分には、その外面にクリーナ１
０および除電器１１が配設されている。クリーナ１０は
ブレードクリーナでベルト状現像像担持体２上の現像像
を記録媒体１２に転写定着させた後、その表面に残留す
る現像剤を除去するためのものであり、除電器１１はベ
ルト状現像像担持体２の電荷分布を均一化するためのも
ので、ここではＡＣコロナ放電器を示しており、共に次
なるベルト状現像像担持体２上への画像形成にそなえる
ためのプロセスデバイスである。なお、クリーナ１０お
よび除電器１１に対向してベルト状現像像担持体２の内
面側には対向支持部材が配設されている。この実施例で
は、ベルト状現像像担持体２は、耐熱性を有するポリイ
ミド、ポリエーテルイミド、ポリエステル等からなり、
厚み１００μｍ以下程度のものが使用されている。ま
た、その外表面には現像像の離型性をもたせるためのシ
リコン、フッ素系の表面処理が施されている。第１およ
び第２のライン状固体発熱体５および６は、セラミック
ス発熱体、シーズヒータ、薄膜高抵抗体を表面に形成さ
せた表面発熱体などが使用される。Drum-shaped photoreceptor 1 which is an electrostatic latent image forming body
Has an organic photosensitizer (OPC) or an inorganic photosensitizer formed on its surface. The belt-shaped developed image carrier 2 is in close contact with the inner surface of the drum-shaped photosensitive member 1 along its surface curvature, and rotates at the same speed as the drum-shaped photosensitive member 1 rotates. On the inner surface of the belt-shaped developed image carrier 2, first and second line-shaped solid heat generating members 5 and 6 are closely arranged, and further, an idler tension roller 7 for supporting rotational movement is also arranged. Has been done. Inside the belt-shaped developed image carrier 2, an electrostatic latent image is formed on the drum-shaped photoconductor 1 by exposing the drum-shaped photoconductor 1 that is an electrostatic latent image-forming member with a charging roller 8 that charges the drum-shaped photoconductor 1 and image data. The LED optical system 3 which is a latent image forming means having a linear LED for forming is
The drum-shaped photoreceptor 1 along the rotation direction of the drum-shaped photoreceptor 1
It is placed close to or close to the surface. In the portion where the second linear solid heating element 6 is located, the pressure roller 9 is rotatably pressed against the second linear solid heating element 6 via the belt-shaped developed image carrier 2. . Also,
On the outer surface of the belt-shaped developed image carrier 2 between the drum-shaped photoreceptor 1 and the idler tension roller 7 of the belt-shaped developed image carrier 2, a developer for forming a developed image is formed on the outer surface of the belt-shaped developed image carrier 2. A developing device 4 for supplying to the carrier 2 is arranged close to or in contact with the carrier 2. Similarly, in the portion of the belt-shaped developed image carrier 2 supported by the second linear solid-state heating element 6 and the drum-shaped photoreceptor 1, the cleaner 1 is provided on the outer surface thereof.
0 and a static eliminator 11 are provided. The cleaner 10 is for removing the developer remaining on the surface of the recording medium 12 after transferring and fixing the developed image on the belt-shaped developed image carrier 2 with a blade cleaner, and the static eliminator 11 is for removing the belt-shaped toner. This is for making the charge distribution of the developed image carrier 2 uniform. Here, an AC corona discharger is shown, and both are process devices for preparing an image on the next belt-shaped developed image carrier 2. is there. An opposing support member is provided on the inner surface side of the belt-shaped developed image carrier 2 so as to face the cleaner 10 and the static eliminator 11. In this embodiment, the belt-shaped developed image carrier 2 is made of heat-resistant polyimide, polyetherimide, polyester or the like,
A thickness of about 100 μm or less is used. In addition, the outer surface thereof is subjected to a surface treatment of silicon or fluorine for imparting a releasing property of the developed image. As the first and second solid heating elements 5 and 6, a ceramic heating element, a sheath heater, a surface heating element having a thin film high resistance element formed on its surface, or the like is used.
【００１６】次に、この実施例の動作について説明す
る。ドラム状感光体１は駆動モータ（図示せず）により
回転駆動させられ、帯電ローラ８にて表面が均一帯電さ
れた後、画像情報に従って選択的に発光するＬＥＤ光学
系３により静電潜像が形成される。ドラム状感光体１と
ベルト状現像像担持体２とは回転と共に接触し、密着重
ねられる。従って、ドラム状感光体１表面に形成された
静電潜像の電荷分布に従った電荷パターンがベルト状現
像像担持体２外表面に形成される。ドラム状感光体１表
面の電荷分布に対応して、その表面に密着されたベルト
状現像像担持体２内表面に逆極性電荷による電荷分布が
形成され、そのことでベルト状現像像担持体２外表面に
も電荷分布が形成されることになる。ドラム状感光体１
の回転周速と同速で移動するベルト状現像像担持体２
は、次に現像器４と対向し現像剤がその外表面に供給さ
れ、先の電荷分布に対応して現像像を形成する。一方、
ドラム状感光体１はベルト状現像像担持体２から離れ、
再び次なる静電潜像形成へと進む。表面に現像像を形成
したベルト状現像像担持体２は、移動と共に第１のライ
ン状固体発熱体５上に移動し、第１のライン状固体発熱
体５により加熱される。ベルト状現像像担持体２はほと
んど熱容量がないため、加熱供給された熱量は現像像を
形成している現像剤に与えられ現像剤を溶融させる。し
かし、完全溶融させるほどまでには至らず、次の第２の
ライン状固体発熱体６の部分で給紙ローラ１３により同
期して搬送されて来る記録媒体１２に、第２のライン状
固体発熱体６からの加熱および記録媒体１２裏面からの
加圧ローラ９による加圧および転写バイアス印加（図示
せず）によって現像像を転写させると同時に完全溶融定
着させる。このようにして記録媒体１２表面に定着画像
が形成される。記録媒体１２へ現像像を移行させた後の
ベルト状現像像担持体２は、クリーナ１０により表面残
留現像剤を除去し、また除電器１１により残留電荷分布
も除電均一化され、次なる画像形成へと使用される。第
２のライン状固体発熱体６の部分を通過したベルト状現
像像担持体２は、多量の熱容量を有するヒートローラの
場合や１つの固体発熱体のみの場合と比べ加熱熱量が少
ないこと、ベルト状現像像担持体２自体の熱容量がほと
んどないことのために、またクリーナ１０および除電器
１１配設対向裏面に配設した対向部材との接続による放
熱効果もあって温度上昇がほとんどなく、次なる画像形
成に対しても問題なく使用される。Next, the operation of this embodiment will be described. The drum-shaped photoconductor 1 is rotationally driven by a drive motor (not shown), the surface is uniformly charged by the charging roller 8, and then an electrostatic latent image is formed by the LED optical system 3 that selectively emits light according to image information. It is formed. The drum-shaped photosensitive member 1 and the belt-shaped developed image bearing member 2 are brought into contact with each other as they rotate and are brought into close contact with each other. Therefore, a charge pattern according to the charge distribution of the electrostatic latent image formed on the surface of the drum-shaped photoreceptor 1 is formed on the outer surface of the belt-shaped developed image carrier 2. Corresponding to the charge distribution on the surface of the drum-shaped photosensitive member 1, a charge distribution due to opposite polarity charges is formed on the inner surface of the belt-shaped developed image carrier 2 that is in close contact with the surface, and as a result, the belt-shaped developed image carrier 2 is formed. A charge distribution is also formed on the outer surface. Drum-shaped photoreceptor 1
Belt-shaped developed image carrier 2 that moves at the same speed as the rotational peripheral speed of
Next, the developer is supplied to the outer surface of the developing device, facing the developing device 4, and a developed image is formed in accordance with the charge distribution. on the other hand,
The drum-shaped photoreceptor 1 is separated from the belt-shaped developed image carrier 2,
The process proceeds to the next electrostatic latent image formation again. The belt-shaped developed image carrier 2 having the developed image formed on its surface moves on the first line-shaped solid-state heating element 5 as it moves, and is heated by the first line-shaped solid-state heating element 5. Since the belt-shaped developed image carrier 2 has almost no heat capacity, the amount of heat supplied by heating is given to the developer forming the developed image to melt the developer. However, the second line-shaped solid-state heat generating element 6 does not completely melt the second line-type solid-state heat-generating element 6 and the second line-shaped solid-state heat-generating element 6 is conveyed to the recording medium 12 which is conveyed in synchronization by the sheet feeding roller 13. The development image is transferred by heating from the body 6, pressure from the back surface of the recording medium 12 by the pressure roller 9 and application of a transfer bias (not shown), and at the same time complete melting and fixing. In this way, a fixed image is formed on the surface of the recording medium 12. After transferring the developed image to the recording medium 12, the belt-shaped developed image carrier 2 removes the surface residual developer by the cleaner 10, and the residual charge distribution is also uniformized by the static eliminator 11, and the next image formation is performed. Used to. The belt-shaped developed image carrier 2 that has passed through the portion of the second line-shaped solid heat generating element 6 has a smaller amount of heating heat than a heat roller having a large heat capacity or only one solid heat generating element. Since there is almost no heat capacity of the image development image bearing member 2 itself and due to the heat radiation effect due to the connection with the opposing member disposed on the opposing rear surface on which the cleaner 10 and the static eliminator 11 are disposed, there is almost no temperature rise. It can be used without problems even for image formation.
【００１７】図２は、本発明の第２の実施例の構成を示
す図である。図２を参照すると、この実施例の画像形成
装置において、ベルト状現像像担持体２はその内面の一
部に密着し同時移動する静電潜像形成体であるベルト状
感光体１４を配設している。ベルト状感光体１４とベル
ト状現像像担持体２とは回転駆動用ローラ１５にてスリ
ップなく同時移動駆動される。ベルト状現像像担持体２
外表面側からベルト状感光体１４へ静電潜像を形成させ
る静電潜像形成手段である半導体レーザ光学系から成る
ＬＤ光学系１７は回転駆動用ローラ１５部分に向けて露
光するよう配設されている。露光位置後においてベルト
状感光体１４とベルト状現像像担持体２とが密着してい
る部分のベルト状現像像担持体２側には、現像像形成の
ための現像剤を供給する現像器４が接近または接触して
配設されている。ベルト状現像像担持体２の内面には第
１および第２のライン状固体発熱体５および６が密着配
設されている。特に第２のライン状固体発熱体６の位置
する部分では、第２のライン状固体発熱体６に対してベ
ルト状現像像担持体２を介して、加圧ローラ９が回転可
能にして圧接されている。ベルト状現像像担持体２と第
２のライン状固体発熱体６とが接する部分と、ベルト状
現像像担持体２とベルト状感光体１４とが接する部分と
の間には接地された導電性ブレードを有するクリーナ１
０が配設されている。また第１および第２のライン状固
体発熱体５および６の支持部材はベルト状感光体１４帯
電のための帯電ブレード１６を絶縁支持しており、クリ
ーナ対向部材も兼ねている。ベルト状感光体１４として
はポリエチレンテレフタレート、ポリエチレン、ポリイ
ミド、ポリエステル等からなるベース材の上に導電層並
びに感光材層を形成したもので、感光材としては有機系
感光材（ＯＰＣ）あるいは無機系感光材が使用される。
ベルト状現像像担持体２としては第１の実施例と同様の
ものが使用されるが、ＬＤ光学系１７にて使用される光
波長に対して透光性のあるようにしてある。また第１お
よび第２のライン状固体発熱体５および６も第１の実施
例と同様のものが使用されている。FIG. 2 is a diagram showing the configuration of the second embodiment of the present invention. Referring to FIG. 2, in the image forming apparatus of this embodiment, the belt-shaped developed image carrier 2 is provided with a belt-shaped photosensitive member 14 which is an electrostatic latent image-forming member that is in close contact with a part of the inner surface and moves simultaneously. are doing. The belt-shaped photoconductor 14 and the belt-shaped developed image carrier 2 are simultaneously moved and driven by the rotation driving roller 15 without slipping. Belt-shaped developed image carrier 2
An LD optical system 17 composed of a semiconductor laser optical system which is an electrostatic latent image forming means for forming an electrostatic latent image from the outer surface side to the belt-shaped photosensitive member 14 is arranged so as to expose toward the rotation driving roller 15 portion. Has been done. After the exposure position, the developing device 4 that supplies a developer for forming a developed image to the belt-shaped developed image carrier 2 side of the portion where the belt-shaped photosensitive body 14 and the belt-shaped developed image carrier 2 are in close contact with each other. Are arranged close to or in contact with each other. On the inner surface of the belt-shaped developed image carrier 2, first and second line-shaped solid-state heating elements 5 and 6 are closely arranged. Particularly, in the portion where the second linear solid heating element 6 is located, the pressure roller 9 is rotatably pressed against the second linear solid heating element 6 via the belt-shaped developed image carrier 2. ing. Conductivity grounded between a portion where the belt-shaped developed image carrier 2 and the second linear solid-state heating element 6 are in contact with a portion where the belt-shaped developed image carrier 2 and the belt-shaped photosensitive member 14 are in contact with each other. Cleaner with blade 1
0 is set. Further, the supporting members for the first and second line-shaped solid heating elements 5 and 6 insulate and support the charging blade 16 for charging the belt-shaped photosensitive member 14, and also serve as a cleaner facing member. As the belt-shaped photoreceptor 14, a conductive layer and a photosensitive material layer are formed on a base material made of polyethylene terephthalate, polyethylene, polyimide, polyester or the like. The photosensitive material is an organic photosensitive material (OPC) or an inorganic photosensitive material. Wood is used.
As the belt-shaped developed image carrier 2, the same one as in the first embodiment is used, but it is made transparent to the light wavelength used in the LD optical system 17. Further, the first and second linear solid-state heating elements 5 and 6 are the same as those used in the first embodiment.
【００１８】次に、この実施例の動作について説明す
る。回転駆動用ローラ１５の回転によりベルト状感光体
１４およびベルト状現像像担持体２が回転移動される。
ベルト状感光体１４は図示省略の電源出力に接続された
帯電ブレード１６により均一帯電させられた後、ベルト
状現像像担持体２と密着重ねられ回転駆動用ローラ１５
付近でベルト状現像像担持体２を通してＬＤ光学系１７
により画像情報に従って選択的に露光される。露光によ
りベルト状感光体１４は静電潜像を形成し、同時にその
静電潜像の電荷分布に対応してベルト状現像像担持体２
にも電荷分布が形成される。そのプロセスは第１の実施
例動作の場合と同じである。静電潜像形成後、ベルト状
感光体１４およびベルト状現像像担持体２は移動して現
像器４と対向し、そこで現像剤により電荷分布に対応し
て現像され、ベルト状現像像担持体２上に現像像が形成
される。現像像を表面に形成されたベルト状現像像担持
体２は第１のライン状固体発熱体５により加熱され、表
面の現像剤が加熱溶融される。しかし、完全溶融される
までにはいたらず、次の第２のライン状固体発熱体６部
分へと搬送される。第２のライン状固体発熱体６の部分
では第２のライン状固体発熱体６からの加熱および記録
媒体１２裏面からの加圧ローラ９による加圧および転写
バイアス印加（図示せず）により給紙ローラ１３により
同期して搬送されて来る記録媒体１２へ現像像を転写さ
せると同時に、完全溶融定着される。このようにして記
録媒体１２表面に定着画像が形成される。一方、ベルト
状感光体１４は現像プロセス後、ベルト状現像像担持体
２と離れ、帯電ブレード１６部へと進み次なる画像形成
のための静電潜像形成へと進む。記録媒体１２へ現像像
を転写移行させた後のベルト状現像像担持体２は接地さ
れた導電性ブレードを有するクリーナ１０により表面残
留現像剤の除去および除電がなされ、次なる画像形成へ
と進む。ここでも第１の実施例の場合と同じく、第２の
ライン状固体発熱体６を通過した後においては、ベルト
状現像像担持体２の温度上昇はほとんどんなく、次にベ
ルト状感光体１４と接触密着してもベルト状感光体１４
に対して熱的影響は与えない。Next, the operation of this embodiment will be described. The belt-shaped photosensitive member 14 and the belt-shaped developed image carrier 2 are rotated by the rotation of the rotation driving roller 15.
The belt-shaped photosensitive member 14 is uniformly charged by a charging blade 16 connected to a power source output (not shown), and then is closely contacted with the belt-shaped developed image carrier 2 to be rotated and driven.
In the vicinity, the LD optical system 17 is passed through the belt-shaped developed image carrier 2.
Is selectively exposed according to the image information. Upon exposure, the belt-shaped photosensitive member 14 forms an electrostatic latent image, and at the same time, the belt-shaped developed image carrier 2 corresponds to the charge distribution of the electrostatic latent image.
Also, a charge distribution is formed. The process is the same as in the first embodiment operation. After the electrostatic latent image is formed, the belt-shaped photosensitive member 14 and the belt-shaped developed image carrier 2 move and face the developing device 4, where they are developed by the developer in accordance with the charge distribution, and the belt-shaped developed image carrier is developed. A developed image is formed on 2. The belt-shaped developed image carrier 2 having the developed image formed on its surface is heated by the first line-shaped solid heating element 5, and the developer on the surface is heated and melted. However, it is not completely melted and is conveyed to the next second line-shaped solid heating element 6 part. At the portion of the second linear solid heating element 6, the sheet is fed by heating from the second linear solid heating element 6, pressing from the back surface of the recording medium 12 by the pressing roller 9 and transfer bias application (not shown). The developed image is transferred to the recording medium 12 that is conveyed in synchronism by the roller 13, and at the same time, the image is completely melted and fixed. In this way, a fixed image is formed on the surface of the recording medium 12. On the other hand, after the developing process, the belt-shaped photosensitive member 14 separates from the belt-shaped developed image carrier 2 and advances to the charging blade 16 to proceed to electrostatic latent image formation for the next image formation. After the transfer of the developed image to the recording medium 12, the belt-shaped developed image carrier 2 removes the surface residual developer and removes the charge by the cleaner 10 having a grounded conductive blade, and proceeds to the next image formation. . Here, as in the case of the first embodiment, the temperature of the belt-shaped developed image carrier 2 hardly rises after passing through the second line-shaped solid-state heating element 6, and then the belt-shaped photosensitive member 14. Belt-shaped photoreceptor 14 even if it comes into close contact with
Has no thermal effect on.
【００１９】以上、２つの実施例を示したが本発明はこ
れらに限定されるものではない。静電潜像形成手段とし
て述べた光学系の種類と位置、静電潜像形成体形状との
関係、現像器の配設位置の各組み合せはどれであっても
かまわない。さらに、静電潜像形成体としては感光体に
限定されるものでなく、誘電性部材であってもよい。そ
の場合、静電潜像形成手段としては静電ヘッド、イオン
フローヘッド等が用いられる。現像剤としては粉体現像
剤ばかりでなく、液体現像剤や高粘性現像剤でもかまわ
ない。ベルト状現像像担持体の送行形状も略三角のみを
示したが、特にこれに限定されるものでない。その他本
発明の範囲内においてなされる構成・形状・デバイス配
設は、特に限定されるものでないことはもちろんであ
る。Two embodiments have been shown above, but the present invention is not limited to these. Any combination of the type and position of the optical system described as the electrostatic latent image forming means, the relationship between the shape of the electrostatic latent image forming body, and the arrangement position of the developing device may be used. Further, the electrostatic latent image forming body is not limited to the photoconductor, but may be a dielectric member. In that case, an electrostatic head, an ion flow head, or the like is used as the electrostatic latent image forming means. As the developer, not only a powder developer but also a liquid developer or a highly viscous developer may be used. The feeding shape of the belt-shaped developed image carrier also shows only a substantially triangular shape, but is not particularly limited to this. Of course, the configurations, shapes, and device arrangements made within the scope of the present invention are not particularly limited.
【００２０】[0020]
【発明の効果】以上説明したように、本発明によれば、
静電潜像形成体と、この静電潜像形成体を密着内接する
ベルト状現像像担持体と、静電潜像形成体への潜像形成
手段と、ベルト状現像像担持体上に現像剤を供給する現
像器と、ベルト状現像像担持体内面に密着しベルト状現
像像担持体上の現像剤を予備加熱する第１のライン状固
体発熱体と、ベルト状現像像担持体内面に密着し第１の
ライン状固体発熱体により予備加熱された現像剤を記録
媒体に転写定着する第２のライン状固体発熱体とを備え
ることにより、次のような効果があげられる。 １．静電潜像形成体は直接現像像を付着させることがな
いので、現像剤による汚染やクリーナ・記録媒体による
削れ・キズ等の発生がなく、長期にわたり安定して使用
出来る。 ２．記録媒体へ転写同時定着を行うため画像劣化の少な
い高画質画像形成が出来る。 ３．現像剤溶融にあたりあらかじめ仮溶融状態にしてお
き、次に転写時に再加熱定着させるようにしているた
め、従来の転写同時定着のように一度に加熱させ定着さ
せるものと比べ現像剤の飛散も少なく、また転写効率も
向上し定着性も優れたものとなる。 ４．ベルト状現像像担持体への熱ストレスも低減でき、
ライン状固体発熱体としても熱供給において分散される
ため、低コストのまた発熱量の少ない発熱体も使用でき
てさらに信頼性を高められる。 ５．熱容量の少ないベルト状現像像担持体と、２つの固
体発熱体の組み合せによる熱分散で従来のヒートローラ
定着や１つの固体発熱体のみによる定着の場合と比べ、
ベルト状現像像担持体への熱ストレス、温度上昇も大幅
に低減でき、ベルト状現像像担持体の動作時特性安定が
はかれ、材質としても低コストのものの使用も可能とな
る。 ６．ベルト状現像像担持体の温度上昇がないことで静電
潜像形成体への熱的影響も大幅低減されるため、小型の
画像形成装置構成が実現できる。 ７．装置内の各プロセス配置において自由度が増し、多
様な装置設計が可能となる。As described above, according to the present invention,
An electrostatic latent image forming body, a belt-shaped developing image carrier for intimately contacting the electrostatic latent image forming body, latent image forming means for the electrostatic latent image forming body, and development on the belt-shaped developing image carrying body. A developing device for supplying the developer, a first line-shaped solid heating element which is in close contact with the inner surface of the belt-shaped developed image carrier and preheats the developer on the belt-shaped developed image carrier, and an inner surface of the belt-shaped developed image carrier. The following effects can be obtained by including the second line solid heating element that is in close contact with the developer and transferred and fixed to the recording medium by the developer preheated by the first solid heating element. 1. Since the electrostatic latent image forming body does not directly adhere the developed image, it is free from contamination by the developer, cleaner, scraping by the recording medium, scratches and the like, and can be stably used for a long period of time. 2. Since transfer and fixing are simultaneously performed on a recording medium, a high quality image can be formed with little image deterioration. 3. When the developer is melted, it is preliminarily melted and then reheated and fixed at the time of transfer. Further, the transfer efficiency is improved and the fixing property is also excellent. 4. The thermal stress on the belt-shaped developed image carrier can also be reduced,
Since the line-shaped solid heating element is also dispersed in the heat supply, it is possible to use a heating element that is low in cost and has a small amount of heat generation, so that reliability can be further improved. 5. Compared with the conventional heat roller fixing or fixing with only one solid heating element, heat distribution by combining a belt-shaped developed image carrier with a small heat capacity and two solid heating elements,
The thermal stress and temperature rise on the belt-shaped developed image carrier can be greatly reduced, the characteristics of the belt-shaped developed image carrier can be stabilized during operation, and a low-cost material can be used. 6. Since the temperature of the belt-shaped developed image carrier does not rise, the thermal effect on the electrostatic latent image forming member is greatly reduced, and thus a compact image forming apparatus configuration can be realized. 7. The degree of freedom in arranging each process in the device is increased, and various device designs are possible.
【００２１】このように本発明の画像形成装置によって
小型・高信頼・低コストの画像形成装置が実現でき、そ
の効果は絶大である。As described above, the image forming apparatus of the present invention can realize a small-sized, highly reliable, low-cost image forming apparatus, and its effect is great.
【図１】本発明の第１の実施例の構成を示す図である。FIG. 1 is a diagram showing a configuration of a first exemplary embodiment of the present invention.
【図２】本発明の第２の実施例の構成を示す図である。FIG. 2 is a diagram showing a configuration of a second exemplary embodiment of the present invention.
１ ドラム状感光体（静電潜像形成体） ２ ベルト状現像像担持体 ３ ＬＥＤ光学系 ４ 現像器 ５ 第１のライン状固体発熱体 ６ 第２のライン状固体発熱体 ７ アイドラテンションローラ ８ 帯電ローラ ９ 加圧ローラ １０ クリーナ １１ 除電器 １２ 記録媒体 １３ 給紙ローラ １４ ベルト状感光体（静電潜像形成体） １５ 回転駆動用ローラ １６ 帯電ブレード １７ ＬＤ光学系 DESCRIPTION OF SYMBOLS 1 Drum-shaped photoconductor (electrostatic latent image forming body) 2 Belt-shaped developed image carrier 3 LED optical system 4 Developing device 5 1st linear solid heating element 6 2nd linear solid heating element 7 Idler tension roller 8 Charging roller 9 Pressure roller 10 Cleaner 11 Static eliminator 12 Recording medium 13 Paper feeding roller 14 Belt-shaped photoreceptor (electrostatic latent image forming body) 15 Rotation drive roller 16 Charging blade 17 LD optical system
Claims (7)
を密着内接するベルト状現像像担持体と、前記静電潜像
形成体への潜像形成手段と、前記ベルト状現像像担持体
上に現像剤を供給する現像器と、前記ベルト状現像像担
持体内面に密着し前記ベルト状現像像担持体上の前記現
像剤を予備加熱する第１のライン状固体発熱体と、前記
ベルト状現像像担持体内面に密着し前記第１のライン状
固体発熱体により予備加熱された前記現像剤を記録媒体
に転写定着する第２のライン状固体発熱体とを備えるこ
とを特徴とする画像形成装置。1. An electrostatic latent image forming body, a belt-shaped developing image carrier for intimately contacting the electrostatic latent image forming body, latent image forming means for the electrostatic latent image forming body, and the belt-shaped developing image carrier. A developing device for supplying a developer onto the developed image carrier, and a first line-shaped solid heating element which is in close contact with the inner surface of the belt-shaped developed image carrier and preheats the developer on the developed belt carrier. And a second line-shaped solid-state heating element which is in close contact with the inner surface of the belt-shaped developed image carrier and which transfers and fixes the developer preheated by the first line-shaped solid-state heating element onto a recording medium. A characteristic image forming apparatus.
像担持体の内側に配設されていることを特徴とする請求
項１記載の画像形成装置。2. The image forming apparatus according to claim 1, wherein the latent image forming unit is arranged inside the belt-shaped developed image carrier.
像担持体と前記静電潜像形成体とが密着する位置にて潜
像形成作用するように前記ベルト状現像像担持体周辺に
配設されていることを特徴とする請求項１記載の画像形
成装置。3. The peripheral portion of the belt-shaped developed image carrier so that the latent image forming means acts to form a latent image at a position where the belt-shaped developed image carrier is in close contact with the electrostatic latent image carrier. The image forming apparatus according to claim 1, wherein the image forming apparatus is provided.
体と前記静電潜像形成体とが密着する位置にて対向配設
されていることを特徴とする請求項１〜３いずれか記載
の画像形成装置。4. The developing device is arranged so as to face each other at a position where the belt-shaped developed image bearing member and the electrostatic latent image forming member are in close contact with each other. The image forming apparatus described.
体と前記静電潜像形成体とが密着する位置以外で前記ベ
ルト状現像像担持体外面と対向配設されていることを特
徴とする請求項１〜３いずれか記載の画像形成装置。5. The developing device is arranged opposite to the outer surface of the belt-shaped developed image carrier at a position other than the position where the belt-shaped developed image carrier and the electrostatic latent image forming body are in close contact with each other. The image forming apparatus according to any one of claims 1 to 3.
ことを特徴とする請求項１〜５いずれか記載の画像形成
装置。6. The image forming apparatus according to claim 1, wherein the electrostatic latent image forming body has a drum shape.
ことを特徴とする請求項１〜５いずれか記載の画像形成
装置。7. The image forming apparatus according to claim 1, wherein the electrostatic latent image forming body has a belt shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7033613A JP2701768B2 (en) | 1995-02-22 | 1995-02-22 | Image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7033613A JP2701768B2 (en) | 1995-02-22 | 1995-02-22 | Image forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08227237A true JPH08227237A (en) | 1996-09-03 |
| JP2701768B2 JP2701768B2 (en) | 1998-01-21 |
Family
ID=12391316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7033613A Expired - Fee Related JP2701768B2 (en) | 1995-02-22 | 1995-02-22 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2701768B2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63269164A (en) * | 1987-04-28 | 1988-11-07 | Fuji Xerox Co Ltd | Thermal transfer recording method |
| JPH0435161U (en) * | 1990-07-20 | 1992-03-24 | ||
| JPH04130393A (en) * | 1990-09-21 | 1992-05-01 | Matsushita Electric Ind Co Ltd | Ion printer |
| JPH06236092A (en) * | 1992-12-17 | 1994-08-23 | Hewlett Packard Co <Hp> | Method and device for development and transfer of image for electrophotography color printer |
-
1995
- 1995-02-22 JP JP7033613A patent/JP2701768B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63269164A (en) * | 1987-04-28 | 1988-11-07 | Fuji Xerox Co Ltd | Thermal transfer recording method |
| JPH0435161U (en) * | 1990-07-20 | 1992-03-24 | ||
| JPH04130393A (en) * | 1990-09-21 | 1992-05-01 | Matsushita Electric Ind Co Ltd | Ion printer |
| JPH06236092A (en) * | 1992-12-17 | 1994-08-23 | Hewlett Packard Co <Hp> | Method and device for development and transfer of image for electrophotography color printer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2701768B2 (en) | 1998-01-21 |
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