JP2003316056A - Photosensitive drum - Google Patents
Photosensitive drumInfo
- Publication number
- JP2003316056A JP2003316056A JP2002118216A JP2002118216A JP2003316056A JP 2003316056 A JP2003316056 A JP 2003316056A JP 2002118216 A JP2002118216 A JP 2002118216A JP 2002118216 A JP2002118216 A JP 2002118216A JP 2003316056 A JP2003316056 A JP 2003316056A
- Authority
- JP
- Japan
- Prior art keywords
- photosensitive drum
- resin film
- functional resin
- photosensitive layer
- roll
- 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
Landscapes
- Photoreceptors In Electrophotography (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、複写機、レーザー
プリンター、ファクシミリ等において、トナーを紙、フ
ィルム等に転写するための感光ドラムに関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive drum for transferring toner to paper, film, etc. in copying machines, laser printers, facsimiles and the like.
【０００２】[0002]
【従来の技術】従来の感光ドラムは、軸の外側にロール
があり、そのロールの外周面に感光層が形成されてお
り、そのロールを加熱して感光層の表面にトナーを付着
させ、そのトナーを紙、フィルム等に転写するもので
る。2. Description of the Related Art A conventional photosensitive drum has a roll on the outside of its shaft, and a photosensitive layer is formed on the outer peripheral surface of the roll. The roll is heated to adhere toner to the surface of the photosensitive layer. It transfers toner to paper, film, etc.
【０００３】[0003]
【発明が解決しようとする課題】従来の感光ドラムには
次のような課題があった。
（１）感光層が剥き出しのため感光層が汚れたり、傷付
いたりし易く、汚れたり、傷付いたりすると鮮明な転写
が難しくなる。
（２）感光層に紙粉や塵芥が付着し易く、付着すると感
光層全面が均一に加熱されにくくなり、カラーコピーの
場合は色ムラが発生し、きれいな画像が得られにくい。The conventional photosensitive drum has the following problems. (1) Since the photosensitive layer is exposed, the photosensitive layer is easily soiled or scratched. If the photosensitive layer is soiled or scratched, clear transfer becomes difficult. (2) Paper dust or dust is likely to adhere to the photosensitive layer, and if adhered, the entire surface of the photosensitive layer is difficult to be heated uniformly, and in the case of color copying, color unevenness occurs and it is difficult to obtain a clean image.
【０００４】[0004]
【課題を解決するための手段】本発明の目的は紙粉や塵
芥が付着しにくく、汚れにくく、傷付きにくく、熱の分
散性が良く、ロール全体が温度むら無く均一に加熱され
て色ムラ等による画質劣化が少なく、色の再現性が良
く、軽量な感光ドラムを提供することにある。DISCLOSURE OF THE INVENTION The object of the present invention is to prevent paper dust and dirt from adhering, stains, scratches, heat dispersibility, and uniform heating of the entire roll without temperature unevenness. An object of the present invention is to provide a light-weight photosensitive drum which is less likely to be deteriorated in image quality due to the like, has good color reproducibility.
【０００５】本件出願の請求項１記載の感光ドラムは、
軸の外側にアルミ製又は高機能性樹脂製のロールが設け
られ、そのロールの外周面に感光層が設けられ、感光層
の外側にフッ素樹脂膜又は高機能性樹脂膜が形成された
ものである。The photosensitive drum according to claim 1 of the present application is
A roll made of aluminum or high-performance resin is provided on the outside of the shaft, a photosensitive layer is provided on the outer peripheral surface of the roll, and a fluororesin film or a high-performance resin film is formed on the outside of the photosensitive layer. is there.
【０００６】本件出願の請求項２記載の感光ドラムは、
請求項１記載の感光ドラムにおいて、高機能性樹脂膜が
２以上の異なる高機能性樹脂を混合したものである。The photosensitive drum according to claim 2 of the present application is
The photosensitive drum according to claim 1, wherein the high-functional resin film is a mixture of two or more different high-functional resins.
【０００７】本件出願の請求項３記載の感光ドラムは、
請求項１又は請求項２記載の感光ドラムにおいて、高機
能性樹脂膜をフッ素樹脂としたものである。The photosensitive drum according to claim 3 of the present application is
The photosensitive drum according to claim 1 or 2, wherein the highly functional resin film is a fluororesin.
【０００８】本件出願の請求項４記載の感光ドラムは、
請求項１乃至請求項３のいずれかに記載の感光ドラムに
おいて、高機能性樹脂膜がコーティング又は含浸された
ものである。The photosensitive drum according to claim 4 of the present application is
The photosensitive drum according to any one of claims 1 to 3, which is coated or impregnated with a highly functional resin film.
【０００９】[0009]
【発明の実施の形態】（実施形態１）本発明の感光ドラ
ムの実施形態の一例を図１に基づいて説明する。本実施
例に示す感光ドラムは、軸１の外側にアルミ製のロール
２を設け、そのロール２の外周面に感光層３を設け、そ
の外側に高機能性樹脂層４を設けてある。感光層３は感
光剤を塗布して形成してあり、高機能性樹脂層４は高機
能性樹脂（エンジニアリングプラスチック）をコーティ
ング、蒸着、含浸等の手段で形成してある。高機能性樹
脂としては例えばフッ素を使用することができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) An example of an embodiment of a photosensitive drum of the present invention will be described with reference to FIG. In the photosensitive drum shown in this embodiment, an aluminum roll 2 is provided outside the shaft 1, a photosensitive layer 3 is provided on the outer peripheral surface of the roll 2, and a highly functional resin layer 4 is provided outside the photosensitive layer 3. The photosensitive layer 3 is formed by applying a photosensitizer, and the high-functional resin layer 4 is formed by coating a high-functional resin (engineering plastic) by means such as coating, vapor deposition, and impregnation. For example, fluorine can be used as the highly functional resin.
【００１０】前記コーティングには吹き付けによる方
法、刷毛で塗布する方法などがある。前記蒸着には被膜
構成物質（たとえばフッ素樹脂）を蒸発させて物品に膜
付けする物理蒸着方法（ＰＶＤ）、被膜構成物質（フッ
素樹脂）を含むガスから膜を析出（化学反応）させる化
学蒸着方法（ＣＶＤ）である。前者の例としては、真空
蒸着、スパッタリング、イオンプレーティング、イオン
ビーム蒸着、イオンミキシング等があり、後者の例とし
ては、熱ＣＶＤ、低圧ＣＶＤ、プラズマＣＶＤ等があ
る。前記高機能性樹脂層４はこれら方法のいずれによっ
て形成してもよく、これら以外の方法で形成してもよ
い。前記含浸方法としてはフッ素樹脂含浸処理コートが
ある。これはフッ素樹脂を主材として、プラスチックの
物理的強度を変化（劣化）させず、表面にだけフッ素樹
脂を含浸させる処理方法である。The above-mentioned coating includes a spraying method and a brush method. For the vapor deposition, a physical vapor deposition method (PVD) for evaporating a film constituent substance (for example, a fluororesin) to form a film on an article, and a chemical vapor deposition method for depositing (chemical reaction) a film from a gas containing the film constituent substance (fluororesin). (CVD). Examples of the former include vacuum evaporation, sputtering, ion plating, ion beam evaporation, and ion mixing, and examples of the latter include thermal CVD, low-pressure CVD, plasma CVD, and the like. The high-functional resin layer 4 may be formed by any of these methods, or may be formed by a method other than these. As the impregnation method, there is a fluororesin impregnation treatment coat. This is a treatment method using a fluororesin as a main material and impregnating the fluororesin only on the surface without changing (degrading) the physical strength of the plastic.
【００１１】（実施形態２）本実施形態の感光ドラムの
基本構成は前記実施形態１の感光ドラムのそれと同一で
ある。異なるのは、感光層３の外側の高機能性樹脂膜の
材料としてフッ素樹脂以外のもの、例えば、塩化ビニル
樹脂、ＡＢＳ樹脂、ポリアミド、ポリプロピレン、ポリ
アセタール、ポリブチレンテフレタート、ポリカーボネ
ート、ポリスルホン、ポリフェニレンサルファイド、液
晶ポリマー、フェノール樹脂、メラミン樹脂、エポキシ
樹脂、シリコン等を使用したことである。使用されるこ
れら樹脂は単一種類で使用されるとは限らず、二種類以
上の高機能性樹脂膜を混合し、これを含浸させて高機能
性樹脂を形成することもできる。尚、ここに列挙した高
機能性樹脂は一例であり、これ以外の高機能性樹脂を単
一で、又は混合して使用することもできる。(Second Embodiment) The basic structure of the photosensitive drum of the present embodiment is the same as that of the photosensitive drum of the first embodiment. The only difference is that the material of the high-performance resin film outside the photosensitive layer 3 is other than fluororesin, for example, vinyl chloride resin, ABS resin, polyamide, polypropylene, polyacetal, polybutylene terephthalate, polycarbonate, polysulfone, polyphenylene sulfide. , Liquid crystal polymer, phenol resin, melamine resin, epoxy resin, silicone, etc. are used. These resins to be used are not limited to being used in a single kind, and two or more kinds of high-functional resin films can be mixed and impregnated to form a high-functional resin. The high-functional resins listed here are examples, and other high-functional resins may be used alone or in combination.
【００１２】（その他の実施形態）(Other Embodiments)
【００１３】前記実施形態１及び実施形態２のロール２
はアルミ製であるが、ロール２は高機能性樹脂製であっ
てもよく、このようにすると軽量化が実現可能である。
感光ドラムの軸１も金属製、強化繊維プラスチックのよ
うな硬質で強度に優れた材質性のものとすることができ
る。Roll 2 of Embodiments 1 and 2
Is made of aluminum, but the roll 2 may be made of a highly functional resin, and in this case, weight reduction can be realized.
The shaft 1 of the photosensitive drum can also be made of a material such as metal and reinforced fiber plastic that is hard and has excellent strength.
【００１４】[0014]
【発明の効果】請求項１記載の感光ドラムは次のような
効果がある。
（１） 感光層の外周面が高機能性樹脂膜によって被覆
されているので、感光層が汚れたり、傷付いたりしにく
くなり、転写性能が低下することがない。
（２） 感光層の外周面が高機能性樹脂膜によって被覆
されているので、熱分散性が良く、ロールの熱が感光層
全体に均一に行き渡って均一に加熱され、色ムラのない
転写が可能となる。
（３）感光ドラムの用途や使用環境等に応じて適宜選択
した高機能性樹脂によって高機能性樹脂膜を形成すれ
ば、その用途や使用環境等に応じた好適な感光ドラムを
得ることができる。
（４）ロールがアルミ製又は高機能性樹脂製なので、軽
量で耐熱性の高い感光ドラムを得ることができる。The photosensitive drum according to claim 1 has the following effects. (1) Since the outer peripheral surface of the photosensitive layer is covered with the high-performance resin film, the photosensitive layer is less likely to be soiled or scratched, and the transfer performance is not deteriorated. (2) Since the outer peripheral surface of the photosensitive layer is covered with the high-performance resin film, the heat dispersibility is good, the heat of the roll is evenly distributed over the entire photosensitive layer, and the transfer is performed without color unevenness. It will be possible. (3) If a high-performance resin film is formed of a high-performance resin that is appropriately selected according to the application and use environment of the photosensitive drum, a suitable photosensitive drum can be obtained according to the application and use environment. . (4) Since the roll is made of aluminum or high-performance resin, a light-weight photosensitive drum having high heat resistance can be obtained.
【００１５】請求項２記載の感光ドラムは、感光層の外
周面の高機能性樹脂膜が、２種類以上の異なる高機能性
樹脂を混合した材料で形成されているので、混合された
高機能性樹脂の夫々の特徴が複合された利点を併せ持っ
た感光ドラムを得ることができる。According to a second aspect of the present invention, in the photosensitive drum, the high-functional resin film on the outer peripheral surface of the photosensitive layer is formed of a material in which two or more different high-functional resins are mixed, and thus the mixed high-functional resin is used. Thus, it is possible to obtain a photosensitive drum which has the advantages that the respective characteristics of the volatile resin are combined.
【００１６】請求項３記載の感光ドラムは、高機能性樹
脂膜がフッ素樹脂であるため、滑りがよく、塵芥や紙粉
が付着しにくくなり、感光ドラムの表面が汚れにくく、
熱ムラが発生しにくくなり、色ムラが特に出にくくな
る。In the photosensitive drum according to the third aspect, since the high-functional resin film is a fluororesin, it slips well, dust and paper dust are less likely to adhere, and the surface of the photosensitive drum is less likely to become dirty.
Heat unevenness is less likely to occur, and color unevenness is less likely to occur.
【００１７】請求項４記載の感光ドラムは、高機能性樹
脂膜がロールコーテイング又は含浸されているので、高
機能性樹脂膜の成形が容易であり、コストも安価にな
る。In the photosensitive drum of the fourth aspect, since the high-functional resin film is roll-coated or impregnated, the high-functional resin film can be easily formed and the cost can be reduced.
【図１】（ａ）は実施形態１に示した感光ドラムの縦断
面図、（ｂ）は同横断面図、（ｃ）は同斜面図。1A is a longitudinal sectional view of a photosensitive drum shown in Embodiment 1, FIG. 1B is a lateral sectional view thereof, and FIG. 1C is a perspective view thereof.
１ 軸 ２ ロール ３ 感光層 ４ 高機能性樹脂層 1 axis Two rolls 3 Photosensitive layer 4 Highly functional resin layer
Claims (4)
ロールが設けられ、そのロールの外周面に感光層が設け
られ、感光層の外側にフッ素樹脂膜又は高機能性樹脂膜
が形成されたことを特徴とする感光ドラム。1. A roll made of aluminum or a highly functional resin is provided outside the shaft, a photosensitive layer is provided on the outer peripheral surface of the roll, and a fluororesin film or a highly functional resin film is provided outside the photosensitive layer. A photosensitive drum that is formed.
能性樹脂膜が２以上の異なる高機能性樹脂を混合したも
のであることを特徴とする感光ドラム。2. The photosensitive drum according to claim 1, wherein the highly functional resin film is a mixture of two or more different highly functional resins.
おいて、高機能性樹脂膜がフッ素樹脂であることを特徴
とする感光ドラム。3. The photosensitive drum according to claim 1 or 2, wherein the highly functional resin film is a fluororesin.
感光ドラムにおいて、高機能性樹脂膜がコーティング又
は含浸されたことを特徴とする感光ドラム。4. The photosensitive drum according to claim 1, wherein the highly functional resin film is coated or impregnated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002118216A JP2003316056A (en) | 2002-04-19 | 2002-04-19 | Photosensitive drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002118216A JP2003316056A (en) | 2002-04-19 | 2002-04-19 | Photosensitive drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003316056A true JP2003316056A (en) | 2003-11-06 |
Family
ID=29535180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002118216A Pending JP2003316056A (en) | 2002-04-19 | 2002-04-19 | Photosensitive drum |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003316056A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7341813B2 (en) | 2002-06-26 | 2008-03-11 | Fuji Xerox Co., Ltd. | Electrophotographic photoreceptor, electrophotographic member, process cartridge and image forming apparatus |
-
2002
- 2002-04-19 JP JP2002118216A patent/JP2003316056A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7341813B2 (en) | 2002-06-26 | 2008-03-11 | Fuji Xerox Co., Ltd. | Electrophotographic photoreceptor, electrophotographic member, process cartridge and image forming apparatus |
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