JP4755830B2 - エンドレス画像形成媒体の製造方法 - Google Patents
エンドレス画像形成媒体の製造方法 Download PDFInfo
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- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
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Description
図1に示される画像形成装置には、エンドレス画像形成媒体1、この場合、光導電性を有する帯電ベルトが設けられ、この材料は駆動およびガイドローラ2、3および4により、それぞれ一定速度で進められる。媒体1がコロナ装置10により静電的に帯電された後に、ウインドウ5上に置かれる原稿の画像は、フラッシュランプ6および7、レンズ8、ミラー9により媒体1に投射される。こうして、帯電潜像が媒体1上で得られる。別の実施形態では、帯電画像が、例えばラスタ出力スキャナまたはLEDバープリンタから既知な走査光源を用いることによって形成される。後者の光源は、しばしばデジタルプリンタで使用される。露出後に形成する帯電潜像は、トナー粉末を用いて磁気ブラシ装置11で現像されてトナー像を形成してから、第1の転写区域内のエンドレス中間媒体ベルト12に加圧下で接触させられ、上記ベルト12は、欧州特許第0349072号から既知な、例えばシリコンゴムのような柔らかい弾性の耐熱性材料の上部層を設けられる。トナー像は、媒体1からベルト12へ接着力により転写される。このようにして、画像は上記中間媒体上に形成される。この画像の転写後、残っている任意の画像の残留物が清掃装置13により媒体1から除去され、光導電媒体1は再利用の準備が整う。
図2は、国際特許出願第03/028982号から既知の、特にこの明細書の5ページの第4行から13ページの第21行までに処理の詳細が記載される、支持体のストリップの溶接を示す図である。既知の処理を以下に簡単に述べる。同図は、上記ストリップの両端を共に溶接するための装置に配置されたメリネックス箔(100)のストリップを示す。上記ストリップの2つの対向端は、位置45で互いに先端面で合わされる。これらの端部とその周囲の区域は、2つのガラス板46および47の間に封入される。これらの板は、プレート間の相互の距離が箔自体の厚みと常に等しくなるように、加圧手段48および49により箔に押し付けられる。
図3は、図2を参照して説明されるように、溶接処理の使用により得られるエンドレス支持体100を示す。この支持体は、厚さ150μm、幅35cm、および長さ1200.0mmを有するメリネックスのストリップから形成される。本実施形態による溶接処理では、ストリップの端部の先端が互いに合わされるため、エンドレス支持体100は同じ長さを有する。使用されるメリネックスのガラス転移点の温度は80℃である。
図4は、画像形成媒体1の構造を示す図である。同図は、この種の媒体の断面図の一部を示す。副層301から305が積層された画像形成層300は、支持体100に塗布される。副層301は、スパッタリング処理により支持体に塗布することのできる50nm厚のチタニウム層である。100nm厚の接着層が、スプレーコート処理によりこの金属層に塗布される。図示される例では、この接着層は、市販のポリエステルであるDynapol(登録商標)を含む。この層は、空気であらゆる不純物を吹き飛ばすことによって清掃される。生成層303は、接着層に塗布され、自由荷電キャリヤーを放出しつつ光を吸収できる色素を含む。この種の色素は、従来技術、例えば米国特許第4587189号明細書から十分に既知である。この例では、生成層は500nmの厚さを有する。この生成層の塗布後、トランスポート層304が塗布される。この種の層とその塗布は、従来技術、例えば上述の米国特許第4587189号明細書の例IIIに記載される従来技術から十分に既知である。その処理のさらなる詳細も、同特許明細書に記載されている。最後に、この例では150nm厚の非晶質カーボン層である保護層305が塗布される。この層は、図1に示される処理で使用されるとき、画像形成媒体の機械的損耗を低減する。
2、3、4、14、15 駆動およびガイドローラ
5 ウインドウ
6、7 フラッシュランプ
8 レンズ
9 ミラー
10 コロナ装置
11 磁気ブラシ装置
12 エンドレス中間媒体ベルト
13 清掃装置
17 赤外線エミッタ
18 リザーバ
19、20、23、24 ローラ
22 ベルト
25 配送トレイ
40、41 光学系
46、47 ガラス板
48、49 加圧手段
50、51 レーザ放射ガイドワイヤ
60、61 表面
100 ストリップ
200 ドラム
201 アルミニウムの壁
202 孔
300 画像形成層
301、302、303、304、305 副層
Claims (9)
- 第1および第2の端部の間で延伸する半晶質の支持体材料のストリップからエンドレス画像形成媒体を製造する方法であって、
・両端部を1つにまとめる段階と、
・1つにまとめられた部分を一緒に溶接し、エンドレス支持体を形成する段階と、
・溶接した部分が後結晶化する段階と、
・画像形成層を支持体上に形成する段階と、
を順に備えており、溶接部分が後結晶化する段階の後、画像形成層を形成する段階の前に、少なくとも支持体における後結晶化した溶接部分が伸張されかつ支持体材料のガラス転移点を超える温度まで加熱されることを特徴とする、方法。 - ガラス転移点を超えて加熱した後、画像形成層を形成する前に、支持体材料が支持体材料のガラス転移点を下回る温度まで冷却されることを特徴とする、請求項1に記載の方法。
- 支持体全体が伸張されることを特徴とする、請求項1または2に記載の方法。
- 支持体が、ストリップの長さLを2πで割った値よりもわずかに大きい半径を有するドラム上で伸張されることを特徴とする、請求項3に記載の方法。
- 前記支持体を押し被せたドラムをオーブン内に配置することによって、支持体がガラス転移点温度を超える温度まで加熱されることを特徴とする、請求項4に記載の方法。
- 画像形成層が、溶液で塗布した後、溶剤を蒸発させて形成した誘電体層を含んでいることを特徴とする、請求項1から5のいずれか一項に記載の方法。
- 画像形成層が、エンドレス支持体の表面に付着させた金属層を含んでいることを特徴とする、請求項1から6のいずれか一項に記載の方法。
- ポリエステルが支持体材料として使用されることを特徴とする、請求項1から7のいずれか一項に記載の方法。
- 2軸延伸ポリエチレンテレフタル酸塩フィルムが支持体として使用されることを特徴とする、請求項8に記載の方法。
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US4006019A (en) * | 1974-10-10 | 1977-02-01 | Xerox Corporation | Method for the preparation of an electrostatographic photoreceptor |
US4033768A (en) * | 1976-04-14 | 1977-07-05 | Xerox Corporation | Method for the preparation of an electrostatographic photosensitive device |
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US5021109A (en) * | 1989-12-29 | 1991-06-04 | Xerox Corporation | Method of preparing a multilayered belt |
US5240532A (en) * | 1991-12-27 | 1993-08-31 | Xerox Corporation | Process for heat treating a flexible electrostatographic imaging member |
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DE602005022953D1 (de) | 2010-09-30 |
US7282110B2 (en) | 2007-10-16 |
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