JPH03274565A - Positioning device for photosensitive drum - Google Patents
Positioning device for photosensitive drumInfo
- Publication number
- JPH03274565A JPH03274565A JP7634290A JP7634290A JPH03274565A JP H03274565 A JPH03274565 A JP H03274565A JP 7634290 A JP7634290 A JP 7634290A JP 7634290 A JP7634290 A JP 7634290A JP H03274565 A JPH03274565 A JP H03274565A
- Authority
- JP
- Japan
- Prior art keywords
- drum
- positioning
- cylindrical drum
- cylindrical
- coating
- 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
- 239000011248 coating agent Substances 0.000 claims abstract description 41
- 238000000576 coating method Methods 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 abstract description 8
- 230000002093 peripheral effect Effects 0.000 abstract description 6
- 239000000758 substrate Substances 0.000 abstract 5
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000006748 scratching Methods 0.000 abstract 1
- 230000002393 scratching effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 10
- 239000000049 pigment Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 238000000034 method Methods 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
- 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
- 102100027340 Slit homolog 2 protein Human genes 0.000 description 1
- 101710133576 Slit homolog 2 protein Proteins 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
- 238000010586 diagram 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ホッ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きなる。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０．１ｍｍすれても
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 hopper 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 rubs by 0.1 mm, 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。したかって
、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号公報に記載の技術のものが
ある。これは、第８図のように、支持部材１Ｏ１ＩＯに
回転自在に設けた位置規制コロ１１．１１をドラムｌの
外周囲に接触させて設けたちのである。Conventionally, as this type of drum positioning device, there is a technique described in, for example, Japanese Patent Laid-Open No. 60-50537. This is because, as shown in FIG. 8, position regulating rollers 11.11 rotatably provided on the support member 1O1IO are provided in contact with the outer periphery of the drum l.
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.
さらに、ドラムに位置決めにあたり、ドラムの軸方向の
一個所のみで位置決めを行うと、第８図のように、ドラ
ムの移動手段によりドラムが傾いて供給された場合には
、たとえドラムの外周面が位置規制されたとしても、傾
いた状態のまま軸方向に移動する。その結果、同図のよ
うに、支持部材に衝突したり、塗布ヘッドと均一に間隙
を保持しないまま移動することになってしまう。Furthermore, when positioning the drum at only one location in the axial direction of the drum, if the drum is fed tilted by the drum moving means as shown in Figure 8, even if the outer peripheral surface of the drum is Even if the position is restricted, it will move in the axial direction while remaining tilted. As a result, as shown in the figure, the coating head collides with the support member or moves without maintaining a uniform gap from the coating head.
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、ドラムの傾き移動を
防止して、塗布ヘッドに対して常に均一なりリアランス
を保持させることにある。Therefore, the main object of the present invention is to position the drum without damaging the drum, prevent the drum from tilting, and always maintain a uniform clearance with respect to the coating head.
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有し
、かつこの吹付手段がドラム基体の軸方向に離間して複
数配設されていることで解決される。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 a spraying means for positioning the cylindrical drum by spraying a fluid onto the outer peripheral surface of the cylindrical drum using the fluid pressure at a position where the coating liquid has already been applied; This is solved by having it installed.
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、ドラムの軸方向の複数個所で
位置決めを行うので、ドラムの軸か傾くことなく塗布ヘ
ットの軸心に対して均一に保持でき、もって塗布ヘット
への衝突や、周方向のクリアランスの不均一を防止でき
、塗布膜厚の均一化を図ることができる。On the other hand, since positioning is performed at multiple points in the axial direction of the drum, the drum axis can be held uniformly with respect to the axis of the coating head without tilting, thereby reducing collisions with the coating head and clearance in the circumferential direction. It is possible to prevent non-uniformity in the thickness of the coating film and to make the thickness of the coating film uniform.
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図および第２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（以下単にドラムと
いう）で、図示しない搬送手段たとえばドラムの底面を
ン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。FIGS. 1 and 2 show a first embodiment, in which 1 is a drum base (hereinafter simply referred to as a drum) having a hollow cylindrical shape, for example, and a conveying means (not shown), such as a roller, lifts the bottom surface of the drum. Alternatively, by alternately gripping it with an appropriate gripping means, it can be raised continuously.
２はこのドラム１の外周面に感光液を塗布するための環
状塗布ヘットで、対地固定に設置され、かつドラム１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 photosensitive liquid to the outer circumferential surface of drum 1, which is fixed to the ground and continuously discharges photosensitive liquid from an outlet opening on the inner side during the rising process of drum 1. It is applied by letting it dry.
本発明に用いられる塗布手段としての塗布ヘットとして
は、ドラムの外面にこれを取り囲んで配置されドラムの
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とを適宜採用できる。As long as the coating head as the coating means used in the present invention has a basic structure that is arranged around the outer surface of the drum and applies a coating liquid to the outer surface of the drum, the coating head disclosed in Japanese Patent Application Laid-Open No. 58-189061 , JP-A No. 60-50537, etc. can be appropriately employed.
この例を第７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ｌ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２
２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 l side is formed in the horizontal direction. This slit 2
2 communicates with a liquid reservoir header 23, and a photosensitive liquid is supplied to this liquid reservoir header 23 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トラムｌ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か形成されている。On the other hand, a liquid slide 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 tram l.
Further, a lip-shaped portion 26 is formed extending downward from the terminal end of the liquid sliding surface 25.
かかる塗布ヘッド２を用いる場合、ドラム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ＭＬは、はぼ唇状部２６とド
ラムエ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 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 ML that has reached the lip 26 is applied to the outer surface of the drum base 1 with a thickness corresponding to the clearance between the lip 26 and the drum.
この種の塗布ヘッド２に対して、ドラムｌ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。第１図および第２図の第１実施例では、エア
を吹き付ける吐出ノズル３．３．３が、それらの先端が
塗布ヘッド２の中心軸から均等の離間距離をもって配設
され、かつ周方向に１２０度の角度をもってドラム１の
中心軸に向かって水平に配設され、各吐出ノズル３は共
通の環状ヘッダ４に連通している。この環状ヘッダ４に
はコンプレッサー５からの高圧エアが供給されるように
なっており、環状ヘッダ４に導かれた高圧エアは各吐出
ノズル３．３．３から均一の吐出量および圧力をもって
ドラムｌの外周面に向かって高速で吹き付けられる。そ
の結果、ドラムｌはその軸心が、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。In order to coaxially supply the drum 1 to this type of application head 2, a positioning spray means using fluid pressure is provided. In the first embodiment shown in FIGS. 1 and 2, the discharge nozzles 3.3.3 for blowing air are arranged such that their tips are spaced evenly apart from the central axis of the coating head 2, and are arranged circumferentially. Disposed horizontally toward the central axis of the drum 1 at an angle of 120 degrees, each discharge nozzle 3 communicates with a common annular header 4. This annular header 4 is supplied with high-pressure air from a compressor 5, and the high-pressure air guided to the annular header 4 is discharged from each discharge nozzle 3.3.3 to the drum with a uniform discharge amount and pressure. is sprayed at high speed toward the outer circumferential surface of the As a result, the axis of the drum l is positioned identically with respect to the central axis of the coating head 2. Therefore, the photosensitive liquid from the coating head 1 is applied to the outer peripheral surface of the drum 1 with a uniform coating thickness.
さらに、各吐出ノズル３．３．３を要素とするドラム１
のある位置に配設された一組の吹付手段に対して、軸方
向の他の位置に吹付ノズル３Ａ、３Ａ、３Ａを要素とす
る他の一組の吹付手段が配設されている。実施例では、
この他の組の吹付手段も同様の構成により、共通のコン
プレッサー５により、エアを各吐出ノズル３Ａから吐出
させるようになっている。Furthermore, a drum 1 with each discharge nozzle 3.3.3 as an element.
In contrast to one set of spray means disposed at one position, another set of spray means including spray nozzles 3A, 3A, and 3A are disposed at other positions in the axial direction. In the example,
The other sets of blowing means have a similar configuration, and a common compressor 5 causes air to be discharged from each discharge nozzle 3A.
この場合において、各組からの吐出エア量または圧力を
調節弁６．６Ａにより異ならせることができる。さらに
、各組の吐出ノズル３．３Ａ群からのエア吹付位置は、
第２図のように、たとえば６０度異ならせることができ
る。In this case, the amount or pressure of air discharged from each set can be varied by the control valve 6.6A. Furthermore, the air blowing position from each group of discharge nozzles 3.3A is as follows:
As shown in FIG. 2, the angles can be varied by, for example, 60 degrees.
このように、トラムｌに対して、その軸方向に異なる位
置において、エアを吹き付けると、ドラム１の傾斜を防
止できる。また、必要ならば２組だけでなく、３組以上
の吹付手段を設けることもできる。In this way, by blowing air onto the tram l at different positions in the axial direction, it is possible to prevent the drum 1 from tilting. Moreover, if necessary, not only two sets but three or more sets of spraying means can be provided.
第３図は第２実施例を示したもので、ドラム１の周囲に
９０度の角度をもって４つの吐出ノズル３が配設された
ものである。このように、ある組の吐出ノズル３の数は
限定されるものではない。FIG. 3 shows a second embodiment, in which four discharge nozzles 3 are arranged around a drum 1 at an angle of 90 degrees. In this way, the number of discharge nozzles 3 in a certain set is not limited.
さらに、吐出ノズル３の先端の形状を、第４図のように
、ドラムＩの外周面と平行にすることもできる。Furthermore, the shape of the tip of the discharge nozzle 3 can be made parallel to the outer circumferential surface of the drum I, as shown in FIG.
一方、吐出ノズル３の配設位置としては、塗布ヘッド２
の下方のみに各組の吐出ノズルを設けることなく、−組
については、第５図のように、塗布ヘッド２の上方に設
けてもよい。この塗布ヘッド２の上方に設ける吐出ノズ
ル３Ａ群については、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, as for the arrangement position of the discharge nozzle 3, the application head 2
Instead of providing each set of discharge nozzles only below the , the negative set may be provided above the coating head 2 as shown in FIG. Regarding the discharge nozzle group 3A provided above the coating head 2, the drum 1 after being coated with the photosensitive liquid
Air will be blown against. 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.
さらに、各吐出ノズル３または３Ａの先端位置を調節自
在にすることができる。また、吐出ノズル３または３Ａ
は塗布ヘット２との相対位置関係が重要であるので、第
６図のように、塗布ヘッド２に一体または水平方向位置
調節自在に取り付けることができる。Furthermore, the tip position of each discharge nozzle 3 or 3A can be freely adjusted. Also, discharge nozzle 3 or 3A
Since the relative positional relationship with the coating head 2 is important, as shown in FIG. 6, it can be attached to the coating head 2 integrally or horizontally so that its position can be freely adjusted.
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、ドラムに対して非接
触の状態で位置決めを行うことができ、もってドラムに
傷を付けることを防止でき、しかも正確な位置決めが容
易となる。さらに、特に本発明においては、ドラム基体
の軸方向に離間した複数の位置のおいて吹付手段を設け
たので、ドラムの傾斜搬送を防止できる。As described above, according to the apparatus of the present invention, positioning can be performed without contacting the drum, thereby preventing damage to the drum, and facilitating accurate positioning. Furthermore, especially in the present invention, since the spray means are provided at a plurality of positions spaced apart in the axial direction of the drum base, it is possible to prevent the drum from being conveyed at an angle.
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
を示す縦断面図、第２図はその水平断面図、第３図は第
２実施例の水平断面図、第４図は第３実施例の水平断面
図、第５図は第４実施例の縦断面図、第６図は第５実施
例の水平断面図、第７図は塗布ヘッド例の縦断面図、第
８図は従来の説明図である。
１・・・円筒ドラム基体、２・・・塗布ヘッド、３．３
Ａ・・・吐出ノズル。FIG. 1 is a vertical sectional view showing an overview of a first embodiment of a positioning device according to the present invention, FIG. 2 is a horizontal sectional view thereof, FIG. 3 is a horizontal sectional view of the second embodiment, and FIG. 4 is a horizontal sectional view of the second embodiment. 5 is a vertical sectional view of the fourth embodiment, FIG. 6 is a horizontal sectional view of the fifth embodiment, FIG. 7 is a vertical sectional view of the coating head example, and FIG. 8 is a vertical sectional view of the third embodiment. It is a conventional explanatory diagram. 1... Cylindrical drum base, 2... Application head, 3.3
A...Discharge nozzle.
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つて； 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有し
、かつこの吹付手段がドラム基体の軸方向に離間して複
数配設されている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 manufacturing of the photosensitive drum; The cylindrical drum is provided with a spraying means for positioning the cylindrical drum by spraying a fluid onto the outer circumferential surface of the cylindrical drum using the fluid pressure at a position where the coating liquid has been applied, and a plurality of the spraying means are arranged spaced apart in the axial direction of the drum base. A positioning device for a photosensitive drum, characterized in that:
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7634290A JP2811216B2 (en) | 1990-03-26 | 1990-03-26 | Photosensitive drum positioning device |
| US07/669,383 US5198028A (en) | 1990-03-26 | 1991-03-14 | Photoreceptor-drum-positioning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7634290A JP2811216B2 (en) | 1990-03-26 | 1990-03-26 | Photosensitive drum positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03274565A true JPH03274565A (en) | 1991-12-05 |
| JP2811216B2 JP2811216B2 (en) | 1998-10-15 |
Family
ID=13602687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7634290A Expired - Lifetime JP2811216B2 (en) | 1990-03-26 | 1990-03-26 | Photosensitive drum positioning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2811216B2 (en) |
-
1990
- 1990-03-26 JP JP7634290A patent/JP2811216B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2811216B2 (en) | 1998-10-15 |
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