JPH0473655A - Photosensitive drum positioning device - Google Patents
Photosensitive drum positioning deviceInfo
- Publication number
- JPH0473655A JPH0473655A JP7634490A JP7634490A JPH0473655A JP H0473655 A JPH0473655 A JP H0473655A JP 7634490 A JP7634490 A JP 7634490A JP 7634490 A JP7634490 A JP 7634490A JP H0473655 A JPH0473655 A JP H0473655A
- Authority
- JP
- Japan
- Prior art keywords
- drum
- drums
- drum base
- coating
- positioning
- 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
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims description 35
- 238000000576 coating method Methods 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 32
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract 3
- 239000010410 layer Substances 0.000 description 10
- 239000007921 spray Substances 0.000 description 8
- 239000000049 pigment Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 108091008695 photoreceptors Proteins 0.000 description 2
- -1 polycyclic aromatic compounds Chemical class 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- QSNAVZQFIDCTQI-UHFFFAOYSA-N 1,2,3-trinitro-9h-fluorene Chemical compound C1=CC=C2C(C=C(C(=C3[N+]([O-])=O)[N+]([O-])=O)[N+](=O)[O-])=C3CC2=C1 QSNAVZQFIDCTQI-UHFFFAOYSA-N 0.000 description 1
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PGEHNUUBUQTUJB-UHFFFAOYSA-N anthanthrone Chemical compound C1=CC=C2C(=O)C3=CC=C4C=CC=C5C(=O)C6=CC=C1C2=C6C3=C54 PGEHNUUBUQTUJB-UHFFFAOYSA-N 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Coating Apparatus (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、円筒ドラムに感光液を塗布することによって
電子写真感光体を製造する際にその円筒ドラムの位置決
めを図る装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for positioning a cylindrical drum when manufacturing an electrophotographic photoreceptor by applying a photosensitive liquid to the cylindrical drum.
電子写真装置で使用される感光体である有機光導電体感
光ドラムの製造においては、円筒形状のドラム基体に感
光性の塗布液を塗布する。その塗布に当たっては、円筒
ドラムの周囲にスライドポツパーを所定位置に位置決め
し、両者間のクリアランスを周方向に関して一定に保持
する調整作業が必要となる。この場合、所要の塗布層厚
はきわめて薄いため、円筒ドラムがＯ，Ｉ ａｍずれて
−も周方向に関し、全体としてみれば塗膜層の膜厚の大
きな偏差要因となる。In manufacturing an organic photoconductor photosensitive drum, which is a photosensitive member used in an electrophotographic apparatus, a photosensitive coating liquid is applied to a cylindrical drum base. In applying the coating, it is necessary to position a slide popper at a predetermined position around the cylindrical drum and to perform adjustment work to maintain a constant clearance between the two in the circumferential direction. In this case, since the required thickness of the coating layer is extremely thin, even if the cylindrical drum is shifted by 0, I am, it will cause a large deviation in the thickness of the coating layer as a whole in the circumferential direction.
かかる塗膜層の膜厚偏差があると、円筒ドラムの周方向
で帯電量の変化、感度の不均一、残留電位の変化等の各
種不具合が生じることは周知の事実である。したがって
、円筒ドラムの正確な位置決めが極めて重要となる。It is a well-known fact that such deviations in the thickness of the coating layer cause various problems such as changes in the amount of charge, non-uniform sensitivity, and changes in residual potential in the circumferential direction of the cylindrical drum. Accurate positioning of the cylindrical drum is therefore extremely important.
従来、この種のドラムの位置決め装置としては、たとえ
ば特開昭６０−５０５３７号公報に記載のように、支持
部材に回転自在に設けた位置規制コロをドラムの外周囲
に接触させて設けたものである。Conventionally, this type of drum positioning device includes a position regulating roller rotatably provided on a support member and in contact with the outer periphery of the drum, as described in Japanese Patent Application Laid-Open No. 60-50537. It is.
しかしながら、この種の従来装置は、位置規制コロを直
接ドラムに対して接触させながら位置決めするものであ
るので、ドラムに傷がついてしまうという難点があった
。ドラムに傷がつくと、電子写真特性が悪化することは
周知である。However, in this type of conventional device, the positioning roller is placed in direct contact with the drum for positioning, so there is a problem in that the drum may be damaged. It is well known that electrophotographic properties deteriorate if the drum is scratched.
そこで、ドラムに位置決めにあたり、本発明者らは、た
とえばエアを吹付ノズルから吹き付けて位置決めを行う
ようにすると、ドラムの疵付きが防止でき、きわめて有
効であるとこを知見した。Therefore, when positioning the drum, the inventors of the present invention have found that it is extremely effective to spray air from a blowing nozzle for positioning to prevent the drum from being damaged.
しかるに、第７図ｔａ＋および（ｂｌのように、ドラム
エを順次繋ぎ合わせて移動させる場合、先のドラム１が
位置決め用吹付ノズル１０から逃げて、次のドラム１に
移行するとき、先のドラム１が外的要因により、水平方
向に移動させる外力が作用したときには、ｉｂ１図のよ
うに、たとえ次のドラム１の位置決めを行うことができ
たとしても、先のドラム１が水平方向に急にずれてしま
うことがあることが発見された。この現象が生じると、
感光液の横段や液切れ塗布現象となって現れる。However, when the drums are connected and moved one after another as shown in FIG. When an external force is applied to move the drum horizontally due to an external factor, as shown in Figure ib1, even if the next drum 1 can be positioned, the previous drum 1 may suddenly shift horizontally. It was discovered that when this phenomenon occurs,
This appears as horizontal steps in the photosensitive liquid or a coating phenomenon in which the liquid runs out.
また、移動方向の一個所で位置決めを行う場合には、ド
ラム１が傾斜したとき、その傾斜を修正できない。Further, when positioning is performed at one location in the direction of movement, when the drum 1 is tilted, the tilt cannot be corrected.
そこで本発明の主たる課題は、ドラムに疵を付けないで
ドラムの位置決めを行うとともに、ドラム相互間の繋ぎ
部分におけるドラムの位置ずれを防止し、さらにドラム
の傾斜を修正できるようにすることにある。Therefore, the main object of the present invention is to position the drums without damaging the drums, prevent the drums from shifting at the joints between the drums, and correct the inclination of the drums. .
上記課題は、感光ドラム製造に当たり、その円筒ドラム
基体の外周面にこれを取り囲んでその外周面に塗布液を
塗布する際にドラム基体の位置決めを行う装置であって
；
円筒ドラム基体の未塗布位置または塗布液の塗布済位置
において、その外周面に対して５０Ｍ以上の軸方向長さ
にわたって実質的に連続した吐出口から流体を吹き付け
てその流体圧により円筒ドラムの位置決めを行う吹付手
段を設けたことで解決される。The above-mentioned problem is an apparatus for positioning a drum base when coating a coating liquid on the outer circumferential surface of a cylindrical drum base by surrounding the outer circumferential surface of the cylindrical drum base during manufacturing of a photosensitive drum; Or, spraying means is provided for positioning the cylindrical drum by spraying fluid from a substantially continuous discharge port over an axial length of 50 m or more to the outer circumferential surface of the coating liquid at the position where the coating liquid has been applied. This will solve the problem.
本発明では、その外周面に対して流体を吹き付けてその
流体圧により円筒ドラムの位置決めを行う。すなわち、
ドラムの周囲から流体、たとえばエアを吹き付けると、
その吹付圧力により、ドラムの位置が中立化し、もって
ドラムが所定位置に位置決めを図ることができる。In the present invention, the cylindrical drum is positioned by spraying fluid onto its outer peripheral surface and using the fluid pressure. That is,
When a fluid, such as air, is blown around the drum,
The spray pressure neutralizes the position of the drum, thereby making it possible to position the drum at a predetermined position.
しかも、ドラムに機械的接触することがないから、ドラ
ムに傷を付けることを防止できる。Moreover, since there is no mechanical contact with the drum, damage to the drum can be prevented.
他方、位置決めに当たり、ドラムの外周面に対して５０
ｍ以上の軸方向長さにわたって実質的に連続した吐出口
から流体を吹き付けて位置決めを行うので、ドラムの繋
ぎ部分においても、両ドラムの位置決めを行うことがで
き、もって横段塗布や液切れ塗布を防止できる。さらに
、ドラムにこれを傾斜させる外力が作用しても、その修
正力が作用するので、傾斜を防止できる。On the other hand, for positioning, 50 mm is applied to the outer peripheral surface of the drum.
Since positioning is performed by spraying fluid from substantially continuous discharge ports over an axial length of m or more, it is possible to position both drums even at the joint portion of the drums, making it possible to perform horizontal coating and dripping coating. can be prevented. Furthermore, even if an external force is applied to the drum that causes it to tilt, a correction force is applied to the drum, thereby preventing the drum from tilting.
以下本発明を実施例によってさらに詳説する。 The present invention will be explained in more detail below with reference to Examples.
第１図は第１実施例を示したもので、１はたとえば中空
円筒形等のドラム基体で、軸方向に繋ぎ合わせた状態で
、図示しない搬送手段たとえばドラム基体の底面をシリ
ンダーなどにより上昇させる、あるいは適宜の把持手段
により交互把持することにより、連続的に上昇するよう
になっている。FIG. 1 shows a first embodiment, in which 1 is a hollow cylindrical drum base, which is connected in the axial direction, and the bottom surface of the drum base is raised by a conveying means (not shown), such as a cylinder. Alternatively, by alternately gripping it with an appropriate gripping means, it can be raised continuously.
２はこのドラム基体１の外周面に感光液を塗布するため
の環状塗布ヘッドで、対地固定に設置され、かつドラム
基体ｌの上昇過程で、内面側に開口した流出口から感光
液を連続的に吐出させることにより塗布するものである
。Reference numeral 2 denotes an annular coating head for applying a photosensitive liquid to the outer peripheral surface of the drum base 1, which is fixed to the ground and continuously applies the photosensitive liquid from an outlet opening on the inner surface during the rising process of the drum base 1. It is applied by discharging it.
本発明に用いられる塗布手段としての塗布ヘッドとして
は、ドラム基体１の外面にこれを取り囲んで配置されド
ラム基体ｌの外面に塗布液を塗布する基本的構成を有し
ていれば、特開昭５８−１８９０６１号、特開昭６０−
５０５３７号などに開示されたものなどを適宜採用でき
る。The coating head as the coating means used in the present invention may have a basic structure that is arranged around the outer surface of the drum base 1 and applies a coating liquid to the outer surface of the drum base 1. No. 58-189061, Japanese Patent Publication No. 1983-
50537 and the like can be adopted as appropriate.
この例を第６図に示した。この塗布ヘッド２はスライド
ホッパー型塗布ヘッドである。An example of this is shown in FIG. This coating head 2 is a slide hopper type coating head.
これを説明すると、塗布ヘッド２には、ドラム基体１側
に開口する塗布液流出口２１を有する幅狭の塗布液分配
スリット２２が水平方向に形成されている。このスリッ
ト２２は液溜ヘッダ２３に連通し、この液溜ヘッダ２３
には感光液りを圧送ポンプ（図示せず）により供給する
ようになっている。To explain this, in the coating head 2, a narrow coating liquid distribution slit 22 having a coating liquid outlet 21 opening toward the drum base 1 side is formed in the horizontal direction. This slit 22 communicates with a liquid reservoir header 23, and this liquid reservoir header 23
The photosensitive liquid is supplied by a pressure pump (not shown).
他方、スリット２２の塗布液流出口２１の下側には、連
続して下窄まりに傾斜しドラム基体１の外寸よりやや大
なる寸法で終端をなすように液スライド面２５が形成さ
れ、さらに、この液スライド面２５の終端より下方に延
びて唇状部２６が形成されている。On the other hand, a liquid sliding surface 25 is formed below the coating liquid outlet 21 of the slit 22 so as to continuously slope downward and terminate at a dimension slightly larger than the outer dimension of the drum base 1. Further, a lip-like portion 26 is formed extending downward from the terminal end of the liquid slide surface 25.
かかる塗布ヘッド２を用いる場合、ドラム基体１を引き
上げる過程で、感光液りをスリット２２および塗布液流
出口２１から押出し、液スライド面２５に沿って流下さ
せる。唇状部２６に到った感光液りは、はぼ唇状部２６
とドラム基体１とのクリアランスに相当する厚みをもっ
てドラム基体１の外面に塗布される。When such a coating head 2 is used, in the process of pulling up the drum base 1, the photosensitive liquid is pushed out from the slit 22 and the coating liquid outlet 21, and is caused to flow down along the liquid sliding surface 25. The photosensitive liquid that has reached the lip-shaped portion 26 is removed from the lip-shaped portion 26.
It is applied to the outer surface of the drum base 1 to a thickness corresponding to the clearance between the drum base 1 and the drum base 1.
この種の塗布ヘッド２に対して、ドラム基体１を同軸的
に供給するために、流体圧を利用した位置決め吹付手段
が設けられる。In order to coaxially supply the drum base 1 to this type of coating head 2, positioning spraying means using fluid pressure is provided.
第１図に示す第１実施例では、エアを吹き付ける吹付ノ
ズル３群が、塗布ヘッド２の下方位置において、その先
端を等間隔にした状態で、周方向に９０度の間隔をもっ
て、長さｌにわたって軸方向に整列した状態で４列、ド
ラム基体１の軸心に向かって水平方向に配設されている
。In the first embodiment shown in FIG. 1, three groups of air blowing nozzles are positioned below the coating head 2, with their tips spaced at equal intervals, and arranged at intervals of 90 degrees in the circumferential direction over a length l. Four rows are arranged horizontally toward the axis of the drum base 1 in a state where they are aligned in the axial direction.
これら吹付ノズル３群に対しては、図示しないコンプレ
ッサーからの高圧エアが供給されるようになっており、
ノズル３の先端から均一の吐出量および圧力をもってド
ラム基体１の外周面に向かって高速で吹き付けられる。High-pressure air is supplied from a compressor (not shown) to these three groups of spray nozzles.
It is sprayed from the tip of the nozzle 3 at high speed toward the outer peripheral surface of the drum base 1 with a uniform discharge amount and pressure.
その結果、ドラム基体１はその細心が、塗布ヘッド２の
中心軸に対して同一に位置決めされる。したがって、塗
布ヘッド１からの感光液はドラム基体１の外周面に均一
な塗布膜厚をもって塗布されるようになる。As a result, the drum base 1 is precisely positioned identically with respect to the central axis of the application head 2. Therefore, the photosensitive liquid from the coating head 1 is applied to the outer peripheral surface of the drum base 1 with a uniform coating thickness.
さらに、同図に示されているように、中段のドラム基体
１と下段のドラム基体ｌとが外力によりずれようとする
場合、両ドラム基体１．１の境界に対して、高圧エアに
より位置修正力が作用するので、段差の発生が防止され
る。しかも、あるドラム基体１自体の傾斜も防止される
。Furthermore, as shown in the same figure, if the middle drum base 1 and the lower drum base l tend to shift due to external force, the position is corrected using high-pressure air with respect to the boundary between both drum bases 1.1. Since a force is applied, the generation of a step is prevented. Furthermore, tilting of a certain drum base 1 itself is also prevented.
第２図は第２実施例を示したもので、長さｌの連続の縦
長スリット３ａを有する吹付ノズル３Ａを縦に４つ配設
したものである。FIG. 2 shows a second embodiment, in which four spray nozzles 3A each having a continuous longitudinal slit 3a of length l are arranged vertically.
第３図は吹付ノズル３群を長さｌにわたって螺旋状にド
ラム基体１の外面に対して配設したものである。第４図
は、螺旋スリット３ａを有する吹付ノズル３Ｂから高圧
エアを吐出させるようにしたものである。In FIG. 3, three groups of spray nozzles are spirally arranged on the outer surface of the drum base 1 over a length l. In FIG. 4, high pressure air is discharged from a blowing nozzle 3B having a spiral slit 3a.
一方、吹付ノズルの配設位置としては、塗布ヘッド２の
下方のみに設けることなく、第５図のように、あるノズ
ルまたは全てのノズルを塗布ヘッド２の上方に設けても
よい。この塗布ヘッド２の上方に設けるノズルについて
は、感光液が塗布された後のドラム１に対してエアが吹
き付けられることになる。またその際、感光液の粘度が
高いか、ある程度感光液が乾燥した状態の位置を選定す
ることが望ましい。On the other hand, the spray nozzles may not be provided only below the coating head 2, but some or all of the nozzles may be provided above the coating head 2, as shown in FIG. Air is blown from the nozzle provided above the coating head 2 onto the drum 1 after the photosensitive liquid has been applied. Further, in this case, it is desirable to select a position where the viscosity of the photosensitive liquid is high or where the photosensitive liquid is dry to some extent.
他方、本発明において、吹付ノズルの連続長さｌとして
は、５０ｍ５以上で好ましくは１００順以上とされる。On the other hand, in the present invention, the continuous length l of the spray nozzle is 50 m5 or more, preferably 100 or more.
５０Ｍ未満では、ドラム１．１の繋ぎ部分でのずれを防
止できにくい。If it is less than 50M, it is difficult to prevent the drum 1.1 from shifting at the connecting portion.
本発明において、吹付流体としては、エアの外、他の気
体でもよく、さらに液体たとえば水なども用いることが
できる。In the present invention, the spraying fluid may be not only air but also other gases, and liquids such as water may also be used.
本発明は、前述のように、電子写真感光体を製造する際
の塗布装置としてきわめて有効である。As described above, the present invention is extremely effective as a coating device for manufacturing electrophotographic photoreceptors.
この場合の感光液としては、酸化亜鉛や硫化カドミウム
等の無機感光材料、ポリビニルカルバゾールとトリニト
ロフルオレン等の有機感光材料を高分子バインダーに分
散させたものなどを用いることができる。また近年、高
感度化、耐久性向上のために、電荷発生層と電荷輸送層
を積層した機能分離型感光層も用いることができる。In this case, the photosensitive liquid may be one in which an inorganic photosensitive material such as zinc oxide or cadmium sulfide or an organic photosensitive material such as polyvinylcarbazole or trinitrofluorene is dispersed in a polymer binder. Furthermore, in recent years, in order to increase sensitivity and improve durability, functionally separated photosensitive layers in which a charge generation layer and a charge transport layer are laminated can also be used.
たとえば電荷発生層はアゾ顔料、キノン顔料、ペリレン
顔料、フタロシアニン顔料、アンスアンスロン顔料等を
ポリカーボネートなどの高分子バインダーに分散し、電
荷輸送層は多環芳香族化合物、含窒素環式化合物等を高
分子バインダーに分散して得ることができる。電荷発生
層の厚さは、０．０１〜１０μｍ好ましくは０．０５〜
５μｍであり、電荷輸送層の厚さは好ましくは５〜３０
μｍである。For example, the charge generation layer is made by dispersing azo pigments, quinone pigments, perylene pigments, phthalocyanine pigments, anthanthrone pigments, etc. in a polymeric binder such as polycarbonate, and the charge transport layer is made by dispersing polycyclic aromatic compounds, nitrogen-containing cyclic compounds, etc. It can be obtained by dispersing it in a molecular binder. The thickness of the charge generation layer is 0.01 to 10 μm, preferably 0.05 to 10 μm.
5 μm, and the thickness of the charge transport layer is preferably 5 to 30 μm.
It is μm.
感光液の粘度は０，５〜７００Ｃｐの範囲で、好ましく
は１〜５００ｃｐの範囲である。The viscosity of the photosensitive liquid is in the range of 0.5 to 700 cp, preferably in the range of 1 to 500 cp.
また、電子写真用の中空ドラムとしては、アルミニウム
、ステンレス、導電層が形成されたプラスチック等があ
る。また、先に下引き層や電荷発生層を形成しておいた
ものでもよい。Further, hollow drums for electrophotography include aluminum, stainless steel, plastic on which a conductive layer is formed, and the like. Alternatively, an undercoat layer and a charge generation layer may be formed in advance.
以上の通り、本発明装置によれば、ドラムに疵を付けな
いでドラムの位置決めを行うとともに、ドラム相互間の
繋ぎ部分におけるドラムの位置ずれを防止し、さらにド
ラムの傾斜を修正できる。As described above, according to the apparatus of the present invention, it is possible to position the drums without damaging the drums, prevent the drums from being misaligned at the joints between the drums, and correct the inclination of the drums.
第１図は本発明に係る位置決め装置の第１実施例の概要
を示す斜視図、第２図は第２実施例の斜視図、第３図は
他の例の斜視図、第４図はさらに異なる例の斜視図、第
５図は塗布ヘッドの上下に吹付ノズルを配設した例の縦
断面図、第６図は塗布ヘッド例の縦断面図である。
１・・・円筒ドラム基体、２・・・塗布ヘッド、３Ａ。
３Ｂ・・・吹付ノズル、
３ａ・・・スリッFIG. 1 is a perspective view showing an outline of a first embodiment of the positioning device according to the present invention, FIG. 2 is a perspective view of the second embodiment, FIG. 3 is a perspective view of another example, and FIG. FIG. 5 is a perspective view of a different example, FIG. 5 is a longitudinal sectional view of an example in which spray nozzles are disposed above and below the coating head, and FIG. 6 is a longitudinal sectional view of an example of the coating head. DESCRIPTION OF SYMBOLS 1... Cylindrical drum base, 2... Application head, 3A. 3B...Blowing nozzle, 3a...Slip
Claims (1)
外周面にこれを取り囲んでその外周面に塗布液を塗布す
る際にドラム基体の位置決めを行う装置であって： 円筒ドラム基体の未塗布位置または塗布液の塗布済位置
において、その外周面に対して５０ｍｍ以上の軸方向長
さにわたって実質的に連続した吐出口から流体を吹き付
けてその流体圧により円筒ドラムの位置決めを行う吹付
手段を設けたことを特徴とする感光ドラムの位置決め装
置。(1) A device for positioning the drum base when coating a coating liquid on the outer circumferential surface of the cylindrical drum base by encircling the outer circumferential surface of the cylindrical drum base during the production of photosensitive drums, the apparatus: Spraying means is provided for positioning the cylindrical drum by spraying fluid from a substantially continuous discharge port over an axial length of 50 mm or more to the outer circumferential surface of the coating liquid at the position where the coating liquid has been applied. A photosensitive drum positioning device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7634490A JP2811218B2 (en) | 1990-03-26 | 1990-03-26 | Photosensitive drum positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7634490A JP2811218B2 (en) | 1990-03-26 | 1990-03-26 | Photosensitive drum positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0473655A true JPH0473655A (en) | 1992-03-09 |
| JP2811218B2 JP2811218B2 (en) | 1998-10-15 |
Family
ID=13602744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7634490A Expired - Lifetime JP2811218B2 (en) | 1990-03-26 | 1990-03-26 | Photosensitive drum positioning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2811218B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008188482A (en) * | 2007-01-31 | 2008-08-21 | Ricoh Co Ltd | Coating film forming apparatus |
-
1990
- 1990-03-26 JP JP7634490A patent/JP2811218B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008188482A (en) * | 2007-01-31 | 2008-08-21 | Ricoh Co Ltd | Coating film forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2811218B2 (en) | 1998-10-15 |
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