JPH02234183A - Endless belt-shaped photosensitive body and its production - Google Patents
Endless belt-shaped photosensitive body and its productionInfo
- Publication number
- JPH02234183A JPH02234183A JP5432289A JP5432289A JPH02234183A JP H02234183 A JPH02234183 A JP H02234183A JP 5432289 A JP5432289 A JP 5432289A JP 5432289 A JP5432289 A JP 5432289A JP H02234183 A JPH02234183 A JP H02234183A
- Authority
- JP
- Japan
- Prior art keywords
- endless belt
- coating
- base body
- substrate
- photoreceptor
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims description 24
- 108091008695 photoreceptors Proteins 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 7
- 238000003618 dip coating Methods 0.000 claims description 5
- 229920002799 BoPET Polymers 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract 3
- 239000011247 coating layer Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007611 bar coating method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電子写真方式を用いた複写機，プリンタ，ファ
クシミリ等の装置における感光体に関し、特にエンドレ
スベルト状感光体及びその製造方法に関する．
〔従来の技術〕
従来，この種のエンドレスベルト状感光体は，ＰＨτ等
のフィルム上に導電層を形成し，その上にスプレーコー
ティング法，スビンナーコーティング法，ワイヤーバー
コーティング法，ブレードコーティング法，フローコー
ティング法等により、感光層を順次積層し，積層したフ
ィルムの両端部を数１１１で接合していた．
〔発明が解決しようとする課題〕
上述した従来のエンドレスベルト状感光体は、感光層を
スプレーコーティング法，ブレードコーティング法，フ
ローコーティング法等で積層した後、この積層フィルム
の両端部を接着等により接合しており、接合部分は突起
状となり，実際電子写真方式の装置で印字を行う場台，
接合部分を検知し電子写真方式の帯電，露光，ｉ像，イ
レース等の工程を必要によりスキップさせる必要があり
，接合部分の検知機，スキップ機構等により装置が複雑
となり，また，接合部分の突起部分はクリーニングブレ
ードをキズ付けたりするという欠点を有していた．
また，予め筒状になっている無接台エンドレスベルト状
基体に感光層を形成しようとするならば，平面上にコー
ティングするのとは異なり，スプレーコーティング法，
ブレードコーティング法，フローコーティング法では均
一な膜厚で製膜することが困難であった．また、浸漬塗
工により製膜する場合は、円状の＊京塗工したのでは，
多数個を一度に塗工しようとした場合，各々の基体間の
むだな空間が多くなるために、大量生産することが難し
いという欠点があった．
本発明の目的は前記課題を解決したエンドレスベルト状
感光体及びその製造方法を提供することにある．
〔課題を解決するための手段〕
前記目的を達成するため，本発明はエンドレスベルト状
感光体において、継目のない円筒状フィルムを基体とし
たものである．また、本発明はエンドレスベルト状感光
体の製造方法において，継目のない無接合エンドレスベ
ルト状基体を塗布液中に浸漬させて塗膜を形成するもの
である．また、浸漬塗布方法で塗膜を形成する際、継目
のない無接合エンドレスベルト状基体を楕円状に細長く
変形させて塗膜を形成するものであり、継目のない無接
合エンドレスベルト状基体の内径に治具をあてがい、該
基体を楕円状に細長く変形させるものである．
〔実施例〕
以下，本発明の実施例を図により説明する．（実施例１
）
第１図，第２図（ａ）において、本発明に係るエンドレ
スベルト状感光体１は継目のない円筒状ＰＥＴフィルム
を基体とするものであり、該無接合エンドレスベルト状
基体１ａはその肉厚が約０．１■であるために、第２図
（ｂ）に示すように楕円状に変形させることが可能であ
る．
第３図は無接合エンドレスベルト状基体１ａを固定する
固定治具を示すものであり，該固定治具６は対をなす基
体保持駒７，８を有し、一方の基体保持駒８はスライド
ガイド９により案内されてスライド方向ｌＯにスライド
し、かつスプリングｌ１にて離間する方向に付勢されて
いる．また，基体保持駒７，８の最外周は半円状部７ａ
， ８ａとして形成してあり、その両側は該半円状部７
ａ， ８ａに連続する直線状部７ｂ， ８ｂとして形成
してある．したがって，スプリングｌ１に抗して対をな
す基体保持駒７，８間を狭めてこれを第２図（ａ）に示
すエンドレスベルト状基体１ａの内径にあてがい，その
後，一方の基体保持駒８をスライドガイド９に沿ってス
ライドさせスプリング１ｌのばね力にて両基体保持駒７
，８間を拡げ，エンドレスベルト状基体ｌａを第２図（
ｂ）に示すように楕円状に変形保持させる．
．次に，楕円状に変形させたまま無接金エンドレスベル
ト状基体１ａを第４図に示す塗布タンク１２の塗布液１
３中に浸漬し塗布を行う．浸漬塗布は、まず最初に導電
塗料中に浸漬し，基体ｌａ上に導電層２を形成した後、
順次、下引き層３．電荷発生層４．電荷移動層５を形成
し，第１図に示す無接合エンドレスベルト状感光体・１
を得た．（実施例２）
実施例１と同様の無接合エンドレスベルト状基体１ａを
第５図に示すエンドレスベルト状基体取り付け固定治具
を用い，その５対の基体保持駒７，８間にそれぞれ張り
渡して第２図（＆１）に示すように楕円状に変形させ、
第６図ω及び（ｂ）に示すように同時に５個のエンドレ
スベルト状基体１ａの浸漬塗布を行い，導電眉２，下引
き層３，電荷発生層４，電荷移動Ｍ５を形成し，同時に
５個の無接合エンドレスベルト状感光体１を得た．
〔発明の効果〕
以上説明したように本発明はエンドレスベルト状感光体
に継目が存在しないため，電子写真方式の装置における
帯電，露光．１！１像，イレース，転写等の各工程の配
置がやり易く，特番こ多色印字を行う場合，各色の現像
器の配置がやり易−１．そして、従来のベルト状感光体
では、突起状の接合部分のため、電子写真方式の各工程
をスキツプさせていたが，無接合なエンドレスベルト状
感光体を用いることにより、各工程をスキツプさせる必
要がなく、装置をコンパクトにすることができる．さら
に、無接合エンドレスベルト状感光体の製造において、
浸漬塗布方法により安定した均一膜厚の塗膜を形成でき
，また無接合エンドレスベルト状基体を細長く変形させ
て塗膜を形成することにより、同時に多数個の無接合エ
ンドレスベルト状基体を塗布することができ、大量生産
に適した製造方法を提供することができるという効果を
有する．DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a photoreceptor for electrophotographic devices such as copying machines, printers, facsimile machines, etc., and particularly to an endless belt-like photoreceptor and a method for manufacturing the same. [Prior art] Conventionally, this type of endless belt-shaped photoreceptor has been produced by forming a conductive layer on a film such as PHτ, and applying a spray coating method, a thinner coating method, a wire bar coating method, a blade coating method, or the like on the conductive layer. Photosensitive layers were sequentially laminated using a flow coating method, etc., and both ends of the laminated film were joined using several 111 steps. [Problems to be Solved by the Invention] In the conventional endless belt-shaped photoreceptor described above, after photosensitive layers are laminated by a spray coating method, a blade coating method, a flow coating method, etc., both ends of this laminated film are bonded or the like. The joint is joined, and the joint part has a protruding shape, which is used when printing is actually done using an electrophotographic device.
It is necessary to detect the joint and skip steps such as electrophotographic charging, exposure, i-image, and erase as necessary. This part had the disadvantage of scratching the cleaning blade. In addition, if you want to form a photosensitive layer on a non-contact endless belt-like substrate that has a cylindrical shape in advance, unlike coating on a flat surface, spray coating method,
It was difficult to form a film with a uniform thickness using the blade coating method and flow coating method. In addition, when forming a film by dip coating, circular *Kyo coating is applied.
When trying to coat a large number of substrates at once, there is a disadvantage that it is difficult to mass produce because there is a lot of wasted space between each substrate. An object of the present invention is to provide an endless belt-like photoreceptor that solves the above problems and a method for manufacturing the same. [Means for Solving the Problems] In order to achieve the above object, the present invention provides an endless belt-like photoreceptor in which a seamless cylindrical film is used as a base. Further, the present invention is a method for manufacturing an endless belt-like photoreceptor, in which a seamless, non-bonded endless belt-like substrate is immersed in a coating solution to form a coating film. In addition, when forming a coating film using the dip coating method, the coating film is formed by deforming a seamless, unjointed endless belt-like substrate into an elliptical shape, and the inner diameter of the seamless, unjointed endless belt-like substrate is A jig is applied to the substrate to deform it into an elliptical shape. [Example] Hereinafter, an example of the present invention will be explained using figures. (Example 1
) In FIGS. 1 and 2(a), the endless belt-like photoreceptor 1 according to the present invention has a seamless cylindrical PET film as a base, and the unjointed endless belt-like base 1a has its flesh. Since the thickness is approximately 0.1 mm, it is possible to deform it into an elliptical shape as shown in Figure 2(b). FIG. 3 shows a fixing jig for fixing the unjointed endless belt-like substrate 1a, and the fixing jig 6 has a pair of substrate holding pieces 7 and 8, one of which is a sliding piece. It is guided by a guide 9 and slides in the sliding direction lO, and is biased in the direction of separation by a spring l1. Further, the outermost periphery of the substrate holding pieces 7 and 8 is a semicircular portion 7a.
, 8a, with the semicircular portion 7 on both sides thereof.
They are formed as linear portions 7b and 8b that are continuous with a and 8a. Therefore, the pair of substrate holding pieces 7 and 8 are narrowed against the spring l1 and applied to the inner diameter of the endless belt-like substrate 1a shown in FIG. 2(a), and then one of the substrate holding pieces 8 is Both base holding pieces 7 are slid along the slide guide 9 by the spring force of the spring 1l.
, 8, and the endless belt-like substrate la is shown in Figure 2 (
Deform and hold it in an elliptical shape as shown in b). ．． Next, the coating liquid 1 in the coating tank 12 shown in FIG.
Dip it in 3 and apply. In dip coating, first, the conductive layer 2 is formed on the base la by dipping it into a conductive paint, and then
Sequentially, undercoat layer 3. Charge generation layer 4. A charge transfer layer 5 is formed on the non-bonded endless belt-shaped photoreceptor 1 shown in FIG.
I got it. (Example 2) An unjointed endless belt-like substrate 1a similar to that in Example 1 was stretched between the five pairs of substrate holding pieces 7 and 8 using the endless belt-like substrate attachment fixing jig shown in FIG. deform it into an elliptical shape as shown in Figure 2 (&1),
As shown in FIG. 6 and (b), five endless belt-like substrates 1a are simultaneously dip-coated to form a conductive eyebrow 2, an undercoat layer 3, a charge generation layer 4, and a charge transfer M5. A number of unbonded endless belt-shaped photoreceptors 1 were obtained. [Effects of the Invention] As explained above, in the present invention, since there is no seam in the endless belt-like photoreceptor, charging and exposure in an electrophotographic apparatus are easy. 1! It is easy to arrange each process such as image, erase, transfer, etc. When performing multi-color printing, it is easy to arrange the developing devices for each color.-1. With conventional belt-shaped photoreceptors, each step in the electrophotographic method was skipped due to the protruding joints, but by using an endless belt-shaped photoreceptor without joining, it is necessary to skip each step. This allows the device to be made more compact. Furthermore, in the production of a non-bonded endless belt-shaped photoreceptor,
A coating film with a stable uniform thickness can be formed by the dip coating method, and by forming a coating film by deforming a non-bonded endless belt-like substrate into long and thin strips, it is possible to coat a large number of non-bonded endless belt-like substrates at the same time. This has the effect of providing a manufacturing method suitable for mass production.
Claims (4)
円筒状フィルムを基体としたことを特徴とするエンドレ
スベルト状感光体。(1) An endless belt-like photoreceptor characterized by having a seamless cylindrical film as a base.
継目のない無接合エンドレスベルト状基体を塗布液中に
浸漬させて塗膜を形成することを特徴とするエンドレス
ベルト状感光体製造方法。(2) In the method for manufacturing an endless belt-like photoreceptor,
A method for producing an endless belt-like photoreceptor, which comprises immersing a seamless, unjointed endless belt-like substrate in a coating solution to form a coating film.
接合エンドレスベルト状基体を楕円状に細長く変形させ
て塗膜を形成することを特徴とする請求項（２）項記載
のエンドレスベルト状感光体製造方法。(3) The endless according to claim (2), characterized in that when forming a coating film by a dip coating method, the coating film is formed by deforming a seamless, unjointed endless belt-like substrate into an elliptical shape. A method for manufacturing a belt-shaped photoreceptor.
に治具をあてがい、該基体を楕円状に細長く変形させる
ことを特徴とする請求項（２）項記載のエンドレスベル
ト状感光体製造方法。(4) The method for producing an endless belt-like photoreceptor according to claim (2), characterized in that a jig is applied to the inner diameter of the seamless, unjointed endless belt-like substrate to deform the substrate into an elongated ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1054322A JP2595709B2 (en) | 1989-03-07 | 1989-03-07 | Manufacturing method of endless belt-shaped photoconductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1054322A JP2595709B2 (en) | 1989-03-07 | 1989-03-07 | Manufacturing method of endless belt-shaped photoconductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02234183A true JPH02234183A (en) | 1990-09-17 |
| JP2595709B2 JP2595709B2 (en) | 1997-04-02 |
Family
ID=12967351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1054322A Expired - Fee Related JP2595709B2 (en) | 1989-03-07 | 1989-03-07 | Manufacturing method of endless belt-shaped photoconductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2595709B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0905570A1 (en) * | 1997-09-24 | 1999-03-31 | Xerox Corporation | Invisible seam electrostatographic belt |
| US6106762A (en) * | 1991-02-25 | 2000-08-22 | Xerox Corporation | Processes for forming polymeric seamless belts and imaging members |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6139048A (en) * | 1984-07-31 | 1986-02-25 | Ricoh Co Ltd | Method and apparatus for producing endless belt-like photosensitive substance |
-
1989
- 1989-03-07 JP JP1054322A patent/JP2595709B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6139048A (en) * | 1984-07-31 | 1986-02-25 | Ricoh Co Ltd | Method and apparatus for producing endless belt-like photosensitive substance |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6106762A (en) * | 1991-02-25 | 2000-08-22 | Xerox Corporation | Processes for forming polymeric seamless belts and imaging members |
| EP0905570A1 (en) * | 1997-09-24 | 1999-03-31 | Xerox Corporation | Invisible seam electrostatographic belt |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2595709B2 (en) | 1997-04-02 |
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