JPS5937582A - Photoreceptor drum for electrophotography - Google Patents
Photoreceptor drum for electrophotographyInfo
- Publication number
- JPS5937582A JPS5937582A JP14732482A JP14732482A JPS5937582A JP S5937582 A JPS5937582 A JP S5937582A JP 14732482 A JP14732482 A JP 14732482A JP 14732482 A JP14732482 A JP 14732482A JP S5937582 A JPS5937582 A JP S5937582A
- Authority
- JP
- Japan
- Prior art keywords
- outer diameter
- insulating
- selenium
- selenium layer
- formation part
- 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
- G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
- G03G15/751—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to drum
Abstract
Description
【発明の詳細な説明】
本発明は円筒形の導電性基板の外周にセレン層が形成さ
れ、その両端部がアルマイト被覆層などにより絶縁され
る感光体ドラムに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photosensitive drum in which a selenium layer is formed on the outer periphery of a cylindrical conductive substrate, and both ends of the selenium layer are insulated by an alumite coating layer or the like.
此の種の感光体ドラムは、一般に複写機用又はプリンタ
用に使用され、複写プロセスにおいて感光体ドラムの両
側外周部をμｍう等により駆動させる方法や保持する方
法がとられる。そして当該接触部は、耐摩耗性と絶縁の
目的でアルマイト又はそれに類似する処理が施されるこ
とから、絶縁部の被榎が損傷されることなくセレン層形
成部の仕上げ加工が容易であることが要望される。This kind of photoreceptor drum is generally used for copying machines or printers, and in the copying process, a method of driving or holding the photoreceptor drum by moving the outer periphery of the photoreceptor drum by micrometers or the like is used. Since the contact area is treated with alumite or similar treatment for the purpose of wear resistance and insulation, it is easy to finish the selenium layer forming area without damaging the insulation area. is requested.
第１図は従来の円筒形感光体ドラムの正面図である。此
の円筒形の感光体ドラム１０において、アルマイト処理
による絶縁部１１とセレン層形成部１２とは同径である
。従来一般に絶縁部１１を存する感光体の基板は、第１
工程で全長のＬ寸法法めおよび絶縁部１１の外径仕上げ
とセレン層形成部１２との荒引き加工が行なわれ、セレ
ン層形成部１２０外径を絶縁部１１の外径より多少大き
く加工し、第２工程でセレン層形成部１２をビニールテ
ープなどによリノールした後アルマイト処理を行ない、
第３工程でセレン層形成部１２の外径を絶縁部１１の外
径と同径に加工する方法が取られている、
此のような工程において、上記のような形状を持つ感光
体ドラム１０は、アルマイト処理された絶縁部１１を除
くセレン層形成部１２０基板の外径をアルマイト処理さ
れた絶縁部１１の外径と同径に仕上げすることは困難で
、仕上げ工具によりアルマイト処理された絶縁部１１の
外径を損傷してしまうという欠点があった。FIG. 1 is a front view of a conventional cylindrical photosensitive drum. In this cylindrical photosensitive drum 10, the alumite-treated insulating portion 11 and the selenium layer forming portion 12 have the same diameter. Conventionally, the substrate of a photoreceptor having an insulating section 11 generally has a first
In the process, L dimension measurement of the entire length, finishing of the outer diameter of the insulating part 11 and rough cutting of the selenium layer forming part 12 are performed, and the outer diameter of the selenium layer forming part 120 is machined to be slightly larger than the outer diameter of the insulating part 11. In the second step, the selenium layer forming part 12 is linolized with vinyl tape or the like, and then anodized.
In this process, the outer diameter of the selenium layer forming part 12 is processed to be the same as the outer diameter of the insulating part 11 in the third step. It is difficult to finish the outer diameter of the selenium layer forming part 120 substrate excluding the alumite-treated insulating part 11 to be the same as the outer diameter of the alumite-treated insulating part 11. There was a drawback that the outer diameter of the portion 11 was damaged.
また、絶縁部１１の損傷をさける意味で、フルマ・イト
処理を行なう前に予め絶縁部１１の外径とセレン層形成
ｍ１２との外径を同時に仕上げ加工した後アルマイト処
理を行ない、セレン層形成部１２の外径の再加工は行わ
ない方法が考えられるが、セレン層形成部１２に仕上加
工時の鏡面状態を維持させることが困Ｍ ｒ（ことや、
アルマイト処理工程において傷がつくことなどが欠点で
あった。In addition, in order to avoid damage to the insulating part 11, before performing the full aluminum treatment, the outer diameter of the insulating part 11 and the outer diameter of the selenium layer forming m12 are finished at the same time, and then alumite treatment is performed to form the selenium layer. A method that does not involve reworking the outer diameter of the portion 12 can be considered, but it is difficult to maintain the mirror-like state of the selenium layer forming portion 12 during finishing.
The drawback was that it was scratched during the alumite treatment process.
本発明は上記のような欠点を除去し、フルマイト被覆層
の絶縁部を損傷させろことなくセレン層形成部の加工を
容易にすることのできる感光体ドラムを提供することを
目的とする。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and provide a photosensitive drum in which the selenium layer forming part can be easily processed without damaging the insulating part of the fulmite coating layer.
本発明によれば上記の目的は、絶縁部の外径をセレン層
形成部の外径より小さい形状とすることにより達せられ
る。According to the present invention, the above object is achieved by making the outer diameter of the insulating part smaller than the outer diameter of the selenium layer forming part.
以下本発明の実施例を図面にもとづき説明する。Embodiments of the present invention will be described below based on the drawings.
第２図は本発明の実施例を示し、段付きにより絶縁部の
外径をセレン層形成部の外径より小さい形状とした感光
−＼ドラムの正面図である。此の同筒形の感光体ドラム
２０において、アルマイト被覆層の絶縁部２１とセレン
層形成部２２とは段２３により絶縁部２１の外径がセレ
ン層形成部２２の外径より小さくなっている。此れによ
り、＠１図に示すと同様に第１工程で全長のＬ寸法法め
および絶縁部２１の外′周の仕上加工とセレン層形成部
２２の外周の荒加工を行ない、第２工程でセレン層形成
部２２をビニールテープ等によりシールした後アルマイ
ト処理を行ない、第３工程でセレン層形成ＨＢ２の外周
のみの仕上げ加工を行なう際、切削工具は何等絶縁部２
１の外周のアルマイト被覆層を＃Ｘ偏することがな（な
る。FIG. 2 is a front view of a photosensitive drum showing an embodiment of the present invention, in which the outer diameter of the insulating part is smaller than the outer diameter of the selenium layer forming part by being stepped. In this cylindrical photosensitive drum 20, the insulating part 21 of the alumite coating layer and the selenium layer forming part 22 have a step 23, so that the outer diameter of the insulating part 21 is smaller than the outer diameter of the selenium layer forming part 22. . As a result, as shown in Figure @1, the first step is to measure the L dimension of the entire length, finish the outer periphery of the insulating section 21, and roughen the outer periphery of the selenium layer forming section 22, and then proceed to the second step. After sealing the selenium layer forming part 22 with vinyl tape or the like, an alumite treatment is performed, and when finishing only the outer periphery of the selenium layer forming part HB2 in the third step, the cutting tool is used to cut the insulating part 2.
The alumite coating layer on the outer periphery of No. 1 will not be biased by #X.
第３図は本発明の他の実施例な示し逃げ溝を介して絶縁
部の外径をセレン層形成部の外径より小さい形状とした
感光体ドラムの正面図である。此の円筒形の感光体ドラ
ム３ｏ において、アルマイト被覆層の絶縁部３１
とセレン層形成部３２とは、逃げ溝３３ を介して
絶縁部３１ の外径がセレン層形成部３２の外径より
小さくなっている。ｍ２図に示すと同様に第３工程でセ
レン層形成部３２ °の基板の外周のみに仕上げ加工を
行なう際、絶縁部３１の外径のアルマイト抜機層ン何等
＃Ｍ鴎することがなくなる。FIG. 3 is a front view of a photoreceptor drum according to another embodiment of the present invention, in which the outer diameter of the insulating portion is smaller than the outer diameter of the selenium layer forming portion via a relief groove. In this cylindrical photosensitive drum 3o, the insulating part 31 of the alumite coating layer
In the selenium layer forming portion 32 , the outer diameter of the insulating portion 31 is smaller than the outer diameter of the selenium layer forming portion 32 via the relief groove 33 . As shown in Fig. m2, when finishing is performed only on the outer periphery of the substrate at the selenium layer forming portion 32° in the third step, the alumite cutting machine layer on the outer diameter of the insulating portion 31 will not be distorted.
第４図は本発明の他の実施例を示し、段４４と逃げ屑４
３とを用いて絶縁部４１の外径をセレンｌ−形成部４２
の外径より７トさい形状としている。FIG. 4 shows another embodiment of the invention, in which a step 44 and a relief scrap 4 are shown.
3 to adjust the outer diameter of the insulating part 41 to the selenium forming part 42
The shape is 7 tones smaller than the outer diameter of.
第５図は本発明の他の実施例を示し、テーパ５４により
絶縁部５１の外径をセレンｌ−形成部５２の外径より小
さい形状とした感光体ドラムの正面図である。第２図に
示すと同様に第３工程でセレン層形成部５１０基板の外
周のみに仕上げ加工を行なう際、絶縁部５１のテーパ５
４而とセレン１鱒形成部５２の外周面との２面接触部５
３においては、アルマイトの絶縁被覆が剥離されること
になる。しかし、此の範囲は極く狭く、かつ限られてい
ることから次工程によるセレン層の抜機で補うことが可
能となる。FIG. 5 shows another embodiment of the present invention, and is a front view of a photosensitive drum in which the outer diameter of the insulating portion 51 is made smaller than the outer diameter of the selenium L-forming portion 52 by a taper 54. As shown in FIG. 2, when finishing only the outer periphery of the selenium layer forming portion 510 substrate in the third step, the taper 5 of the insulating portion 51
4 and the outer peripheral surface of the selenium 1 trout forming portion 52.
In step 3, the alumite insulation coating is peeled off. However, since this range is extremely narrow and limited, it can be compensated for by removing the selenium layer in the next step.
本発明は上記のように円筒形感光ドラムにおいて絶縁部
の外径をセレン層形成部の外径より小さい形状としたこ
とにより、セレン層形成部の基板の外周のみを仕上げ加
工ある際、絶縁部の外周り核種を何等損傷させることな
（、複写プロセスにおける機能を安ｉして作用すること
のできる電子写真用感光体ドラムを提供することができ
る。In the present invention, as described above, in the cylindrical photosensitive drum, the outer diameter of the insulating part is smaller than the outer diameter of the selenium layer forming part, so that when finishing only the outer periphery of the substrate in the selenium layer forming part, the insulating part It is possible to provide an electrophotographic photosensitive drum that can function safely in the copying process without causing any damage to the nuclides surrounding the outer surface of the drum.
第１図は従来の円筒形感光体ドラムの正面図、第２図な
いし第５図は本発明のそれぞれ異なる実施例を示す正面
図である。FIG. 1 is a front view of a conventional cylindrical photosensitive drum, and FIGS. 2 to 5 are front views showing different embodiments of the present invention.
Claims (1)
、その両端部がアルマイト被覆層などにより絶縁される
感光体ドラムにおいて、前記絶縁部の外径を前記セレン
層形成部の外径より小さい形状にしたことをｔ＋！！徴
とする電子写真用感光体ドラム。 ２、特許請求の範囲ｗＪ１項記載の感光体ドラムにおい
て、絶縁部の外径は段によリーヒンン層形成部の外径よ
り小さいことを特徴とする電子写真用感光ドラム。 ３）％許詳求の範囲ｍ１項記載の感光体ドラムにおいて
絶縁部の外径は逃げ溝を介して壽レン層形成部の外径よ
り小さいことを％徴とする電子写真用感光体ドラム。 ４）％許請求の範囲第１項記載の感光体ドラムにおいて
、絶縁部の外径はテーノ（によりセレンノー形成部の外
径より小さいことを特徴とする電子写真用感光体ドラム
。[Scope of Claims] l) In a photoreceptor drum in which a selenium layer is formed on the outer periphery of a cylindrical 2s flexible substrate, and both ends of the selenium layer are insulated by an alumite coating layer, the outer diameter of the insulating part is set to the selenium layer. T+! The shape is smaller than the outer diameter of the layer forming part! ! A photosensitive drum for electrophotography. 2. A photosensitive drum for electrophotography according to claim 1, characterized in that the outer diameter of the insulating portion is smaller than the outer diameter of the layer-forming portion. 3) Range of percentage requirements (m) The photosensitive drum for electrophotography according to item 1, wherein the outer diameter of the insulating portion is smaller than the outer diameter of the layer forming portion via the relief groove. 4) % Allowance The photosensitive drum for electrophotography according to claim 1, wherein the outer diameter of the insulating portion is smaller than the outer diameter of the selenium forming portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14732482A JPS5937582A (en) | 1982-08-25 | 1982-08-25 | Photoreceptor drum for electrophotography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14732482A JPS5937582A (en) | 1982-08-25 | 1982-08-25 | Photoreceptor drum for electrophotography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5937582A true JPS5937582A (en) | 1984-03-01 |
Family
ID=15427602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14732482A Pending JPS5937582A (en) | 1982-08-25 | 1982-08-25 | Photoreceptor drum for electrophotography |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937582A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0482903A2 (en) * | 1990-10-23 | 1992-04-29 | Kabushiki Kaisha Toshiba | Conductive cylindrical support for xerography |
| EP0526340A2 (en) * | 1991-08-01 | 1993-02-03 | Canon Kabushiki Kaisha | Electrophotographic photosensitive member and apparatus including same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574050A (en) * | 1980-06-09 | 1982-01-09 | Canon Inc | Electrophotographic receptor |
-
1982
- 1982-08-25 JP JP14732482A patent/JPS5937582A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574050A (en) * | 1980-06-09 | 1982-01-09 | Canon Inc | Electrophotographic receptor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0482903A2 (en) * | 1990-10-23 | 1992-04-29 | Kabushiki Kaisha Toshiba | Conductive cylindrical support for xerography |
| EP0482903B1 (en) * | 1990-10-23 | 1996-04-03 | Kabushiki Kaisha Toshiba | Conductive cylindrical support for xerography |
| EP0526340A2 (en) * | 1991-08-01 | 1993-02-03 | Canon Kabushiki Kaisha | Electrophotographic photosensitive member and apparatus including same |
| JPH0535164A (en) * | 1991-08-01 | 1993-02-12 | Canon Inc | Electrophotographic photosensitive body |
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