JPH07271240A - Electrophotographic device - Google Patents
Electrophotographic deviceInfo
- Publication number
- JPH07271240A JPH07271240A JP6065322A JP6532294A JPH07271240A JP H07271240 A JPH07271240 A JP H07271240A JP 6065322 A JP6065322 A JP 6065322A JP 6532294 A JP6532294 A JP 6532294A JP H07271240 A JPH07271240 A JP H07271240A
- Authority
- JP
- Japan
- Prior art keywords
- drum
- flange
- photosensitive drum
- moisture
- air
- 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
Landscapes
- Control Or Security For Electrophotography (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、複写装置又はプリンタ
等の情報記録装置に用いる電子写真装置に関し、特に装
置内の湿度の上昇防止を可能とする電子写真装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic apparatus used for an information recording apparatus such as a copying apparatus or a printer, and more particularly to an electrophotographic apparatus capable of preventing an increase in humidity inside the apparatus.
【０００２】[0002]
【従来の技術】従来、この種の電子写真方式を用いる複
写装置又はプリンタ等の情報記録装置に用いる電子写真
装置では、光学部、感光体ドラム、コロナ放電器、現像
器、クリ−ナ、定着器、給紙搬送部等により構成されて
いる。一般には、感光体ドラム周辺にコロナ放電器を有
する構成となっているために、このコロナ放電器の放電
により発生するオゾンが感光体ドラム周辺に溜り、感光
体表面を酸化し、劣化させる。そこで、このようなこと
を防止するために、感光体ドラム両端部に設けられたフ
ランジに換気用の羽根を形成したものが特開昭６２−３
１８７８号に開示されている。2. Description of the Related Art Conventionally, in an electrophotographic apparatus used in an information recording apparatus such as a copying apparatus or a printer using this type of electrophotographic system, an optical section, a photosensitive drum, a corona discharger, a developing unit, a cleaner, and a fixing unit. It is composed of a container, a sheet feeding / conveying unit, and the like. Generally, since the corona discharger is provided around the photoconductor drum, ozone generated by the discharge of the corona discharger accumulates around the photoconductor drum and oxidizes and deteriorates the surface of the photoconductor. Therefore, in order to prevent such a situation, Japanese Patent Laid-Open No. Sho 62-3 discloses a flange provided on both ends of the photosensitive drum with ventilation blades.
No. 1878.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た従来の電子写真装置の構成では、装置が密封されてい
るわけではないために外部環境の影響を受けやすく、例
えば、外部環境が高湿度条件であるような場合には、装
置の運転により装置内湿度が上昇し、特に連続運転では
その影響が大きく、湿気により転写紙のカ−ル等が発生
し、良好な画像を形成することができない。さらには、
湿気により部品を傷めやすく、特に感光体ドラム内壁に
水滴が付着してしまうことが問題になる。However, in the structure of the above-mentioned conventional electrophotographic apparatus, since the apparatus is not hermetically sealed, it is easily affected by the external environment. For example, when the external environment is in a high humidity condition. In such a case, the humidity in the apparatus rises due to the operation of the apparatus, and particularly in continuous operation, the influence thereof is great, and the curl of the transfer paper occurs due to the humidity, so that a good image cannot be formed. Moreover,
Moisture easily damages parts, and in particular, water droplets adhere to the inner wall of the photoconductor drum, which is a problem.
【０００４】これを防止するため従来の装置では、感光
体ドラム周辺の空気を除湿のために加熱するヒ−タ等の
除湿手段を用いたりしているが、装置の小型化に反し、
また装置が高価になるという欠点がある。In order to prevent this, in the conventional apparatus, a dehumidifying means such as a heater for heating the air around the photosensitive drum for dehumidifying is used, but this is contrary to the downsizing of the apparatus.
There is also the drawback that the device is expensive.
【０００５】本発明は、以上の問題点に鑑みてなされた
ものであり、その目的は、装置の小型化が可能であり、
簡単な構成で装置内の湿度の上昇を防止できる電子写真
装置を提供することにある。The present invention has been made in view of the above problems, and an object of the present invention is to reduce the size of the device.
An object of the present invention is to provide an electrophotographic apparatus capable of preventing an increase in humidity inside the apparatus with a simple structure.
【０００６】[0006]
【課題を解決するための手段】本発明では、上記の目的
を達成するために、感光体ドラム両端部に設けられたフ
ランジに換気手段を形成した複写装置又はプリンタ等の
情報記録装置用の電子写真装置において、前記感光体ド
ラムの内壁面に吸湿体を貼付たものである。According to the present invention, in order to achieve the above object, an electronic device for an information recording apparatus such as a copying machine or a printer in which ventilation means are formed on flanges provided at both ends of a photosensitive drum. In a photographic device, a hygroscopic body is attached to the inner wall surface of the photosensitive drum.
【０００７】[0007]
【作用】前記のような本発明において、換気手段によ
り、装置内の空気を感光体ドラム内部に送り、吸湿体に
より湿気を吸収する。In the present invention as described above, the air inside the apparatus is sent to the inside of the photosensitive drum by the ventilation means, and the moisture is absorbed by the hygroscopic body.
【０００８】[0008]
【実施例】以下、本発明の実施例について図面に基づい
て説明する。図１は、本発明の一実施例の斜視図であ
る。図中１は感光体ドラムで、この感光体ドラム１の両
端部には、感光体ドラム１に剛性を付与するためのフラ
ンジ２が設けられている。このフランジ２の一端部に
は、装置内の空気を感光体ドラム１内部へ吸入するため
の羽根２ａが形成されている。一方、フランジ２の他端
部には、感光体ドラム１内の空気を排出するための穴６
がフランジ２の周面に沿って形成されている。３は図示
していない回転軸用の軸穴である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an embodiment of the present invention. In the figure, reference numeral 1 denotes a photosensitive drum, and flanges 2 for imparting rigidity to the photosensitive drum 1 are provided at both ends of the photosensitive drum 1. At one end of the flange 2, a blade 2a for sucking air inside the apparatus into the photosensitive drum 1 is formed. On the other hand, the other end of the flange 2 has a hole 6 for discharging the air in the photosensitive drum 1.
Are formed along the peripheral surface of the flange 2. Reference numeral 3 is a shaft hole for a rotary shaft (not shown).
【０００９】図２は、本発明の一実施例の断面図であ
る。感光体ドラム１の内壁には吸湿体７が、接着剤等に
より一様に貼付られている。吸湿体７は、ポリビニ−ル
アルコ−ルを原料とする連続気孔の多孔質体またはセ−
ム皮等の吸水性を有する素材からなっている。FIG. 2 is a sectional view of an embodiment of the present invention. A hygroscopic body 7 is evenly attached to the inner wall of the photosensitive drum 1 with an adhesive or the like. The hygroscopic body 7 is a porous body or a cell with continuous pores made of polyvinyl alcohol as a raw material.
It is made of a water-absorbing material such as bark.
【００１０】感光体ドラム１の一端部に固定して取付け
られている羽根２ａつきフランジ２は、ここで図示され
ていない回転軸の回転により回転し、回転翼としての作
用を行ない、ドラム軸心５と平行方向で図の矢印４方向
に空気流が生じさせる。この空気流は、吸湿体７により
湿気を吸収された後、穴６を通じて外部へ排出される。
また、空気流４の方向にダクトを設けることにより、装
置外へ排気させることもできる。The flange 2 with blades 2a fixedly attached to one end of the photosensitive drum 1 is rotated by the rotation of a rotary shaft (not shown here) and acts as a rotary blade, and the drum shaft center is provided. An air flow is generated in a direction parallel to 5 and in the direction of arrow 4 in the figure. This air flow is discharged to the outside through the hole 6 after the moisture is absorbed by the moisture absorber 7.
Further, by providing a duct in the direction of the air flow 4, it is possible to exhaust the air to the outside of the device.
【００１１】さらに本実施例では、空気を排出するため
の穴６をフランジ２の周辺に沿って設けているので、感
光体ドラム１内に引き込まれた空気流が、感光体ドラム
１の内壁面に沿うように排出されるため、空気流４と吸
湿体７との接触面積が増大し、空気に含まれる湿気の吸
収効率を上昇させることができる。Further, in this embodiment, since the hole 6 for discharging the air is provided along the periphery of the flange 2, the air flow drawn into the photosensitive drum 1 is the inner wall surface of the photosensitive drum 1. Since the air is discharged along the path, the contact area between the air flow 4 and the moisture absorber 7 increases, and the efficiency of absorbing moisture contained in the air can be increased.
【００１２】[0012]
【発明の効果】この発明は以上のようであって、感光体
ドラム両端部に設けられたフランジに換気手段を形成し
た複写装置又はプリンタ等の情報記録装置用の電子写真
装置において、前記感光体ドラムの内壁面に吸湿体を貼
付けるという簡単な構成で空気の湿気を除去できるた
め、装置を小型にできるとともに、コスト面においても
有利な効果を得ることができる。As described above, the present invention provides an electrophotographic apparatus for an information recording apparatus such as a copying machine or a printer, in which ventilation means are formed on flanges provided at both ends of the photosensitive drum. Since moisture in the air can be removed by a simple structure in which a hygroscopic body is attached to the inner wall surface of the drum, the device can be downsized and advantageous effects can be obtained in terms of cost.
【図１】本発明の一実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】本発明の一実施例を示す断面図である。FIG. 2 is a sectional view showing an embodiment of the present invention.
１ 感光体ドラム ２ フランジ ２ａ 羽根 ３ 回転軸用の軸穴 ４ 空気流 ５ 回転軸中心 ６ 排気用穴 ７ 吸湿体 1 Photoreceptor Drum 2 Flange 2a Blade 3 Shaft Hole for Rotating Shaft 4 Air Flow 5 Rotating Shaft Center 6 Exhaust Hole 7 Moisture Absorber
Claims (2)
ジに換気手段を形成した複写装置又はプリンタ等の情報
記録装置用の電子写真装置において、前記感光体ドラム
の内壁面に吸湿体を貼付たことを特徴とする電子写真装
置。1. An electrophotographic apparatus for an information recording apparatus such as a copying machine or a printer, in which ventilation means are formed on flanges provided at both ends of the photosensitive drum, and a hygroscopic material is attached to an inner wall surface of the photosensitive drum. An electrophotographic device characterized in that
端部に設けられたフランジに形成された吸気用の羽根
と、前記感光体ドラムの他端部に設けられたフランジの
周辺に沿って形成された排気用の孔とからなる請求項１
記載の電子写真装置。2. The ventilation means is provided along the periphery of an intake blade formed on a flange provided at one end of the photosensitive drum and a flange provided at the other end of the photosensitive drum. The formed exhaust hole is formed.
The described electrophotographic apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6065322A JPH07271240A (en) | 1994-04-01 | 1994-04-01 | Electrophotographic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6065322A JPH07271240A (en) | 1994-04-01 | 1994-04-01 | Electrophotographic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07271240A true JPH07271240A (en) | 1995-10-20 |
Family
ID=13283565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6065322A Pending JPH07271240A (en) | 1994-04-01 | 1994-04-01 | Electrophotographic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07271240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011215225A (en) * | 2010-03-31 | 2011-10-27 | Kyocera Mita Corp | Photoreceptor, cooling structure for photoreceptor, and image forming apparatus equipped with the same |
| JP2014010196A (en) * | 2012-06-28 | 2014-01-20 | Kyocera Document Solutions Inc | Photoreceptor drum and image forming apparatus including the same |
-
1994
- 1994-04-01 JP JP6065322A patent/JPH07271240A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011215225A (en) * | 2010-03-31 | 2011-10-27 | Kyocera Mita Corp | Photoreceptor, cooling structure for photoreceptor, and image forming apparatus equipped with the same |
| US8433217B2 (en) | 2010-03-31 | 2013-04-30 | Kyocera Mita Corporation | Photoreceptor, cooling mechanism for photoreceptor, and image forming apparatus provided with the same |
| JP2014010196A (en) * | 2012-06-28 | 2014-01-20 | Kyocera Document Solutions Inc | Photoreceptor drum and image forming apparatus including the same |
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