JPS63278062A - Continuous production of photosensitive drum - Google Patents
Continuous production of photosensitive drumInfo
- Publication number
- JPS63278062A JPS63278062A JP62111669A JP11166987A JPS63278062A JP S63278062 A JPS63278062 A JP S63278062A JP 62111669 A JP62111669 A JP 62111669A JP 11166987 A JP11166987 A JP 11166987A JP S63278062 A JPS63278062 A JP S63278062A
- Authority
- JP
- Japan
- Prior art keywords
- continuously
- coating liquid
- photoreceptor
- cylindrical molding
- hole
- 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
- 238000010924 continuous production Methods 0.000 title 1
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 108091008695 photoreceptors Proteins 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 21
- 238000000576 coating method Methods 0.000 abstract description 21
- 239000007788 liquid Substances 0.000 abstract description 21
- 238000007598 dipping method Methods 0.000 abstract description 15
- 238000000465 moulding Methods 0.000 abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 4
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- HOQAPVYOGBLGOC-UHFFFAOYSA-N 1-ethyl-9h-carbazole Chemical compound C12=CC=CC=C2NC2=C1C=CC=C2CC HOQAPVYOGBLGOC-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 229940125810 compound 20 Drugs 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- JAXFJECJQZDFJS-XHEPKHHKSA-N gtpl8555 Chemical compound OC(=O)C[C@H](N)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1CCC[C@@H]1C(=O)N[C@H](B1O[C@@]2(C)[C@H]3C[C@H](C3(C)C)C[C@H]2O1)CCC1=CC=C(F)C=C1 JAXFJECJQZDFJS-XHEPKHHKSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0525—Coating methods
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photoreceptors In Electrophotography (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、感光体ドラムの連続的製造方法に関する。詳
しくは、特定の成形法で熱硬化性樹脂からなる素管を製
造し、引き続き連続的に感光体ドラムとする方法に藺す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for continuously manufacturing photoreceptor drums. Specifically, we will discuss a method in which a raw tube made of a thermosetting resin is manufactured using a specific molding method and then continuously formed into a photoreceptor drum.
従来、感光体ドラムは、感光体層の基板となる素管を最
終の感光体ドラムの形状と同じ長さの短管としたのち、
その表面の平滑度やドラムの真直度等の精度を高いもの
とする加工を行った後にその上に感光体層を設けること
により製造されていた。Conventionally, photoreceptor drums have been manufactured by making the raw tube that serves as the substrate of the photoreceptor layer into a short tube with the same length as the final photoreceptor drum shape.
The drum was manufactured by processing the drum to improve its surface smoothness and the straightness of the drum, and then providing a photoreceptor layer thereon.
一方、感光体材料としては安価でしかも安全な有機感光
体材料の進歩が目覚ましく、有機感光体を必要に応じ適
当なバインダーとともに溶解或いは分散した塗液を素管
上に塗布するだけで優れた性能の感光体ドラムを作るこ
とが可能となっている。On the other hand, as photoreceptor materials, there has been remarkable progress in inexpensive and safe organic photoreceptor materials, and excellent performance can be achieved simply by applying a coating liquid in which the organic photoreceptor is dissolved or dispersed with an appropriate binder as needed onto the tube. It is now possible to make photoreceptor drums of
しかしながら、短管とした素管は感光体塗液を塗布する
のが難しく、種々の工夫が成されている（例えば、特開
昭５９−４４６７号公報、同６１−２５１４９号公報等
）が、工業的規模での実施と言う面では甚だ不充分なも
のと言わざるを得ない。However, it is difficult to apply photoreceptor coating liquid to short tubes, and various efforts have been made (for example, JP-A-59-4467, JP-A-61-25149, etc.). I have to say that it is extremely inadequate in terms of implementation on an industrial scale.
本発明者らは、上記問題点を解決する方法につき鋭意検
討した結果、特定の方法で製造した円筒状の成形物を用
い、特定の装置を使用すると連続的に容易に感光体ドラ
ムを製造しうろことを見出し本発明を完成した。The inventors of the present invention have conducted intensive studies on methods to solve the above problems, and have found that it is possible to easily manufacture photoreceptor drums continuously by using a cylindrical molded product produced by a specific method and using a specific device. He discovered scales and completed the present invention.
即ち、本発明は、先端部に平滑部を有するスクリューを
持ち、鉛直上方に向けて円筒状の成形物を形成し得る押
し出し成形機の上方に感光体塗液を入れた底部に該円筒
状の成形物の外径よりも僅かに大きい径の貫通孔を有す
る浸漬槽を設けた装置を用い、カーボンを分散した熱硬
化性樹脂を連続的に成形し、成形された円筒状の成形物
を連続的に浸漬槽に送り、該成形物表面に感光体塗膜層
を形成することを特徴とする感光体ドラムを連続的に製
造する方法である。That is, the present invention provides an extrusion molding machine that has a screw having a smooth portion at its tip and is capable of forming a cylindrical molded product vertically upward. Using a device equipped with a dipping tank with a through hole with a diameter slightly larger than the outside diameter of the molded product, thermosetting resin in which carbon is dispersed is continuously molded, and the molded cylindrical molded product is continuously molded. This is a method for continuously manufacturing a photoreceptor drum, characterized in that the molded product is sent to a dipping bath and a photoreceptor coating layer is formed on the surface of the molded product.
本発明において重要な先端部に平滑部を有するスクリュ
ーを有する押し出し成形機、及びそれを用いた熱硬化性
樹脂を成形する方法については既に公知であり、例えば
、特開昭５９−１７８２３５号公報等に例示されている
。An extrusion molding machine having a screw having a smooth portion at the tip, which is important in the present invention, and a method for molding thermosetting resin using the same are already known, for example, in JP-A-59-178235, etc. is exemplified.
ここで表面の平滑度とか、真直度とかと言った感光体ド
ラム用の素管として重要な精度を有する成形物とするた
めには、例えば、上述のスクリュウ−の平滑部において
押し出しと同時に自己形状を保持できる程度にまで賦形
硬化させること、そのため熱硬化性樹脂の種類に応じ押
し出し成形機での温度を設定することなどが重要である
。ここで熱硬化性樹脂としてはフェノール樹脂、メラミ
ン樹脂、尿素樹脂、不飽和ポリエステル樹脂、エポキシ
樹脂、シリコン樹脂、アリル樹脂、キシレン樹脂、アニ
リン樹脂およびポリエチレン樹脂、ポリプロピレン樹脂
、ポリスチレン樹脂、ポリ塩化ビニル樹脂等の熱可塑性
樹脂に架橋剤を加えたもの等が例示され、特にフェノー
ル樹脂、メラミン樹脂が好適に使用される。In order to obtain a molded product with important precision in terms of surface smoothness and straightness as a raw tube for photoreceptor drums, for example, it is necessary to extrude the smooth part of the screw mentioned above and self-shape at the same time. Therefore, it is important to shape and cure the thermosetting resin to a degree that maintains the thermosetting resin, and to set the temperature in the extrusion molding machine depending on the type of thermosetting resin. Here, the thermosetting resins include phenol resin, melamine resin, urea resin, unsaturated polyester resin, epoxy resin, silicone resin, allyl resin, xylene resin, aniline resin, polyethylene resin, polypropylene resin, polystyrene resin, polyvinyl chloride resin. Examples include those obtained by adding a crosslinking agent to a thermoplastic resin such as, among others, phenol resin and melamine resin are particularly preferably used.
またこれらのものを用いて後述の方法により連続的に感
光体ドラムとするには、素管の表面で測定した抵抗が１
０榔Ω・１以下、特に１ｏ６Ω・１以下であることが要
求され、そのため、カーボンをその種類にもよるが全成
形物中に３〜３０ｗ ｔ％分散することが必要である。In addition, in order to continuously produce photoreceptor drums using these materials by the method described below, the resistance measured on the surface of the raw tube must be 1.
It is required that the resistance be 0 Ω·1 or less, particularly 10 6 Ω·1 or less, and therefore it is necessary to disperse carbon in an amount of 3 to 30 wt % in the entire molded product, depending on the type of carbon.
そして、本発明において重要なのは、上記押し出し成形
機は押し出し成形機の先端を鉛直上方に向けた構造に設
置し、円筒状の成形物、即ち素管を上方に向けて形成し
ていく必要がある。こうすることで後述の感光体塗液の
塗布がドラムの円周方向について均一にできる。What is important in the present invention is that the extrusion molding machine described above must be installed in a structure with the tip of the extrusion molding machine facing vertically upward, and the cylindrical molded product, that is, the raw tube, must be formed facing upward. . By doing so, the photoreceptor coating liquid described later can be uniformly applied in the circumferential direction of the drum.
本発明においては、上述の方法で連続的に得られる素管
は次いで上方に設けられた感光体塗液を入れた底部に該
円筒状の成形物の外径よりも僅かに大きい径の貫通孔を
有する浸漬槽に下方より連続的に底部の貫通孔から導入
される。ここで貫通孔と素管との関係は、塗液が浸漬槽
より下方に漏れない構造になっていればよく、例えば０
−リングなどを貫通孔上素管の間に入れる場合は使用す
る０−リングの太さにより定められ、また、このような
パツキン材を使用しない場合は塗液の粘度および表面張
力によりバランスする間隔にすればよい、こうして浸漬
槽内を押し出し成形機による素管が成形されるに従って
素管が移動し、浸漬槽の液面から塗布されたドラムが連
続的に取り出される。In the present invention, the raw tube that is continuously obtained by the above-mentioned method is then provided with a through-hole in the bottom part containing the photoreceptor coating liquid provided above and having a diameter slightly larger than the outer diameter of the cylindrical molded product. It is continuously introduced from below into a dipping tank having a through-hole at the bottom. Here, the relationship between the through hole and the raw pipe should be such that the coating liquid does not leak downward from the immersion tank, for example, 0.
- If a ring or the like is inserted between the raw tube above the through hole, the thickness of the 0-ring used is determined. If such a packing material is not used, the spacing is determined by the viscosity and surface tension of the coating liquid. In this way, as the raw tube is molded by the extrusion molding machine in the dipping tank, the raw tube moves, and the coated drum is continuously taken out from the liquid surface of the dipping tank.
この浸漬槽は必要に応じ何個か設けることで感光体を多
層に塗布することができる。この際、各浸漬槽の間に塗
膜を乾燥できるように、加熱装置或いは熱風を送る装置
を設けることが必要である。By providing several dipping baths as necessary, the photoreceptor can be coated in multiple layers. At this time, it is necessary to provide a heating device or a device for sending hot air between each dipping tank so that the coating film can be dried.
さらに、感光体塗液を塗布する前段に絶縁材料の塗液を
入れた浸漬槽を設け、予め絶縁層を設けることもできる
。Furthermore, it is also possible to provide an insulating layer in advance by providing a dipping tank containing a coating liquid of an insulating material before applying the photoreceptor coating liquid.
以下、本発明の方法を図面を用いて更に詳しく説明する
。Hereinafter, the method of the present invention will be explained in more detail using the drawings.
第１図は本発明の方法を実施するに好適な装置の１例で
ある。FIG. 1 is an example of an apparatus suitable for carrying out the method of the present invention.
図において、１は先端部に平滑部を有するスクリューで
あり、２は押し出し機を加熱するためのヒーター、３は
成形材料を導入するためのホッパー、−４はモーター、
５はバレルを示す。In the figure, 1 is a screw with a smooth part at the tip, 2 is a heater for heating the extruder, 3 is a hopper for introducing the molding material, -4 is a motor,
5 indicates a barrel.
この感光体ドラム用の素管を形成するに十分な精度の円
筒状成形物を製造することの可能な装置については、特
開昭５９−２３０７３４号公報、同６１−１６８２８号
公報、同６１−４４６２２号公報、同６１−４４６２３
号公報等に開示されたものが例示でき、例えば、８０ｍ
−の内径のバレルを有するものを使用すれば、外径８０
ｍｍの円筒形の成形物が１２ｍ／ｈｒ程度の生産速度で
得られる。Regarding the apparatus capable of manufacturing a cylindrical molded product with sufficient precision to form the blank tube for the photoreceptor drum, Japanese Patent Application Laid-open Nos. 59-230734, 61-16828, and 61- Publication No. 44622, No. 61-44623
Examples include those disclosed in the No. 80m publication.
- If you use a barrel with an inner diameter of -, the outer diameter is 80 mm.
A cylindrical molded product with a diameter of 1 mm can be obtained at a production rate of about 12 m/hr.
第１図において、６は感光体塗液を塗布するに好適な温
度で浸漬槽を素管が通過できるように温度を制御する装
置を示す、７は塗液が漏れないようにするためのもので
あり、例えば、０−リングのようなものが利用される。In Fig. 1, 6 indicates a temperature control device so that the raw tube can pass through the dipping tank at a temperature suitable for applying the photoconductor coating liquid, and 7 indicates a device to prevent the coating liquid from leaking. For example, a 0-ring is used.
８は感光体塗液を入れる為の浸漬槽を示し、この槽８を
素管が通過することで感光体塗液が塗布される。９は感
光体塗液を示し、ｌＯは塗液を乾燥するための手段、例
えば、ヒーターである。 １１．１２は同様の形状の浸
漬槽および漏れ防止機構を示し、１ゴは感光体塗液を示
す、この感光体塗液を入れた浸漬槽は必要に応じ１０の
乾燥手段と交互に設けることでさらに多層の感光体ドラ
ムを製造することも可能である。Reference numeral 8 denotes a dipping tank for containing a photoreceptor coating liquid, and the photoreceptor coating liquid is applied by passing the raw tube through this tank 8. Reference numeral 9 indicates a photoreceptor coating liquid, and lO indicates a means for drying the coating liquid, such as a heater. 11.12 shows a dipping tank of similar shape and a leakage prevention mechanism, and 1go shows a photoconductor coating liquid.The dipping tank containing this photoconductor coating liquid may be provided alternately with the drying means in 10 as necessary. It is also possible to manufacture a photoreceptor drum with more layers.
実施例１
およびガラス繊維２０％からなる樹脂混合物を用い、上
述の装置（８０■の径のスクリューを有する。）で１２
ｍ／ｈｒで素管を製造し、ついでカゼインのアルカリ水
溶液（５ｗｔ％）を絶縁樹脂塗液として用い絶縁層を形
成し、その上に４，４゛−ビス（２−ヒドロキシ−３−
（２，４−ジメチルフェニル）カルバモイル−１−ナフ
チルアゾ） −１，４−ジスチルベンゼン顔料の塗液Ｃ
１４料１０ｗｔ％と東洋紡■製ポリエステル樹脂”バイ
ロン２００” １０ｗｔ％を分散したシクロヘキサノン
分散液）を塗布し、さらに３−（Ｎ−メチル−Ｎ−フェ
ニルヒドラゾン）メチル−９，エチルカルバゾール溶液
（該化合物２０＠ｔ％と上記ポリエステル樹脂２０ｗｔ
％を溶解したシクロヘキサノン溶液）を同様の操作で塗
布乾燥して連続的に感光体ドラムを製造した。Example 1 Using a resin mixture consisting of 20% of glass fibers and 20% of glass fibers, 12
A raw pipe is manufactured at a rate of 1.5 m/hr, and then an insulating layer is formed using an alkaline casein aqueous solution (5 wt%) as an insulating resin coating liquid, and 4,4゛-bis(2-hydroxy-3-
(2,4-dimethylphenyl)carbamoyl-1-naphthylazo)-1,4-distylbenzene pigment coating liquid C
A cyclohexanone dispersion in which 10 wt% of material No. 14 and 10 wt% of polyester resin "Vylon 200" manufactured by Toyobo ■ were dispersed) was applied, and a 3-(N-methyl-N-phenylhydrazone) methyl-9, ethylcarbazole solution (the compound 20@t% and the above polyester resin 20wt
% cyclohexanone solution) was coated and dried in the same manner to continuously produce photoreceptor drums.
得られたドラムを複写機に合わせて輪切りにし、複写機
にセットして用いたところ全体にむらのないコピーが得
られた。The obtained drum was cut into rounds to fit the copying machine, and when the drum was set in the copying machine and used, uniform copies were obtained throughout.
本発明を実施することにより感光体ドラムが容易に連続
的に得られ工業的に極めて価値がある。By carrying out the present invention, photoreceptor drums can be easily and continuously obtained, which is extremely valuable industrially.
第１図は本発明の方法を実施するに好適な装置の１例を
示す概念図である。FIG. 1 is a conceptual diagram showing an example of an apparatus suitable for carrying out the method of the present invention.
Claims (1)
方に向けて円筒状の成形物を形成し得る押し出し成形機
の上方に感光体塗液を入れた底部に該円筒状の成形物の
外径よりも僅かに大きい径の貫通孔を有する浸漬槽を設
けた装置を用い、カーボンを分散した熱硬化性樹脂を連
続的に成形し、成形された円筒状の成形物を連続的に浸
漬槽に送り、該成形物表面に感光体塗膜層を形成するこ
とを特徴とする感光体ドラムを連続的に製造する方法。1. The extrusion molding machine has a screw with a smooth part at the tip and can form a cylindrical molded product vertically upward. The carbon-dispersed thermosetting resin is continuously molded using a device equipped with an immersion tank having a through hole with a diameter slightly larger than the diameter of the cylindrical product. A method for continuously manufacturing a photoreceptor drum, characterized in that a photoreceptor coating layer is formed on the surface of the molded product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62111669A JPS63278062A (en) | 1987-05-09 | 1987-05-09 | Continuous production of photosensitive drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62111669A JPS63278062A (en) | 1987-05-09 | 1987-05-09 | Continuous production of photosensitive drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63278062A true JPS63278062A (en) | 1988-11-15 |
Family
ID=14567177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62111669A Pending JPS63278062A (en) | 1987-05-09 | 1987-05-09 | Continuous production of photosensitive drum |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63278062A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5863945A (en) * | 1981-10-14 | 1983-04-16 | Canon Inc | Electrophotographic receptor |
| JPS59178235A (en) * | 1983-03-29 | 1984-10-09 | Mitsui Toatsu Chem Inc | Extrusion molding method of thermosetting resin |
| JPS59230734A (en) * | 1983-06-14 | 1984-12-25 | Mitsui Toatsu Chem Inc | Screw type extrusion molding apparatus for thermosetting resin |
| JPS6116828A (en) * | 1984-07-03 | 1986-01-24 | Mitsui Toatsu Chem Inc | Screw type extruding apparatus for thermosetting resin |
| JPS6120044A (en) * | 1984-07-06 | 1986-01-28 | Minolta Camera Co Ltd | Manufacture of photosensitive drum |
| JPS61178059A (en) * | 1985-01-31 | 1986-08-09 | Mita Ind Co Ltd | Apparatus for coating drum |
| JPS61204635A (en) * | 1985-03-07 | 1986-09-10 | Canon Inc | Manufacture device for electrophotographic sensitive body |
-
1987
- 1987-05-09 JP JP62111669A patent/JPS63278062A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5863945A (en) * | 1981-10-14 | 1983-04-16 | Canon Inc | Electrophotographic receptor |
| JPS59178235A (en) * | 1983-03-29 | 1984-10-09 | Mitsui Toatsu Chem Inc | Extrusion molding method of thermosetting resin |
| JPS59230734A (en) * | 1983-06-14 | 1984-12-25 | Mitsui Toatsu Chem Inc | Screw type extrusion molding apparatus for thermosetting resin |
| JPS6116828A (en) * | 1984-07-03 | 1986-01-24 | Mitsui Toatsu Chem Inc | Screw type extruding apparatus for thermosetting resin |
| JPS6120044A (en) * | 1984-07-06 | 1986-01-28 | Minolta Camera Co Ltd | Manufacture of photosensitive drum |
| JPS61178059A (en) * | 1985-01-31 | 1986-08-09 | Mita Ind Co Ltd | Apparatus for coating drum |
| JPS61204635A (en) * | 1985-03-07 | 1986-09-10 | Canon Inc | Manufacture device for electrophotographic sensitive body |
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