JPH0635381A - Electrophotographic recording device - Google Patents
Electrophotographic recording deviceInfo
- Publication number
- JPH0635381A JPH0635381A JP4190511A JP19051192A JPH0635381A JP H0635381 A JPH0635381 A JP H0635381A JP 4190511 A JP4190511 A JP 4190511A JP 19051192 A JP19051192 A JP 19051192A JP H0635381 A JPH0635381 A JP H0635381A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- photoconductor belt
- electrophotographic recording
- photosensitive belt
- recording apparatus
- 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
- Accessory Devices And Overall Control Thereof (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ファクシミリ装置や複
写機あるいはプリンター等の電子写真式記録装置に関
し、特に、感光体ベルトを用いた電子写真式記録装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic recording device such as a facsimile machine, a copying machine or a printer, and more particularly to an electrophotographic recording device using a photosensitive belt.
【０００２】[0002]
【従来の技術】従来の電子写真式記録装置においては、
例えば図６に示すような感光体ベルト（ＯＰＣベルト）
を用いたものが知られている。図６において、感光体ベ
ルト１は、図示しない３本のローラに架け渡されてお
り、 カバー部材２により部分的に覆わされている。感
光体ベルト１のカバー部材２からの露出部分は、電子写
真式記録の各工程、すなわち露光、現像、転写、クリー
ニングまたは除電等の工程の領域となる。2. Description of the Related Art In a conventional electrophotographic recording apparatus,
For example, a photoreceptor belt (OPC belt) as shown in FIG.
Those using are known. In FIG. 6, the photoconductor belt 1 is spanned by three rollers (not shown) and is partially covered by the cover member 2. The exposed portion of the photoreceptor belt 1 from the cover member 2 becomes an area for each step of electrophotographic recording, that is, the step of exposing, developing, transferring, cleaning or discharging.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
電子写真式記録装置にあっては、感光体ベルト１を覆う
カバー部材２が単に枠体から構成されていたため、飛散
したトナーや紙粉等が枠体の開口部から感光体ベルト１
の内部に侵入する可能性が高かった。この結果、感光体
ベルト１の内周面に接触してベルトを駆動させる駆動ロ
ーラ等と感光体ベルトと間にトナーや紙粉等が入り込
み、ローラと感光体ベルト１とがスリップし易く、すな
わち感光体ベルトとローラの摩擦係数が不安定になると
いった問題点があった。However, in the conventional electrophotographic recording apparatus, since the cover member 2 that covers the photosensitive belt 1 is simply composed of a frame body, scattered toner, paper dust, etc. From the opening of the frame to the photosensitive belt 1
There was a high possibility of breaking into the inside. As a result, toner, paper dust, and the like enter between the photoconductor belt and the drive roller or the like that contacts the inner peripheral surface of the photoconductor belt 1 and drives the belt, and the roller and the photoconductor belt 1 easily slip, that is, There is a problem that the friction coefficient between the photosensitive belt and the roller becomes unstable.
【０００４】そこで、本発明は、感光体ベルトの両開口
端部に、トナーや紙粉等が感光体ベルト内部に侵入する
のを防止する遮蔽部材を設けることにより、または、感
光体ベルト内部にトナーや紙粉等が滞るのを防止する空
気流を発生させることにより、感光体ベルトとローラの
間の摩擦係数を安定させることを課題としている。Therefore, according to the present invention, a shield member for preventing toner, paper dust, and the like from entering the inside of the photosensitive belt is provided at both opening ends of the photosensitive belt, or inside the photosensitive belt. An object is to stabilize the friction coefficient between the photosensitive belt and the roller by generating an air flow that prevents the toner, paper dust, and the like from being stagnant.
【０００５】[0005]
【課題を解決するための手段】請求項１記載の発明は、
上記課題を解決するため、感光体ベルトが、少なくとも
一つの駆動ローラを含む複数のローラに架け渡された電
子写真式記録装置において、前記感光体ベルトの両開口
端近傍の内周面に、ブラシ状の遮蔽部材が接着されたこ
とを特徴としている。The invention according to claim 1 is
In order to solve the above problems, in a electrophotographic recording apparatus in which a photosensitive belt is bridged over a plurality of rollers including at least one driving roller, a brush is provided on an inner peripheral surface near both opening ends of the photosensitive belt. It is characterized in that a shield member having a shape of a sheet is adhered.
【０００６】請求項２記載の発明は、上記課題を解決す
るため、感光体ベルトが、少なくとも一つの駆動ローラ
を含む複数のローラに架け渡された電子写真式記録装置
において、前記感光体ベルトの内周面に接着され、感光
体ベルトと共に回転するとき、感光体ベルトの一端側の
開口部から他端側の開口部に向かう空気流を発生させる
ファン部材を設けたことを特徴としている。According to a second aspect of the present invention, in order to solve the above problems, in an electrophotographic recording apparatus in which a photosensitive belt is stretched over a plurality of rollers including at least one driving roller, the photosensitive belt of the photosensitive belt is provided. A fan member is provided which is adhered to the inner peripheral surface and generates an air flow from the opening on one end side of the photosensitive belt toward the opening on the other end side when rotating together with the photosensitive belt.
【０００７】請求項３記載の発明は、上記課題を解決す
るため、感光体ベルトが、少なくとも一つの駆動ローラ
を含む複数のローラに架け渡された電子写真式記録装置
において、前記感光体ベルトの両開口端部を覆うカバー
部材を設け、該カバー部材の内面に、感光体ベルトの外
周面に接触するブラシ状の遮蔽部材が接着されたことを
特徴としている。According to a third aspect of the invention, in order to solve the above-mentioned problems, in an electrophotographic recording apparatus in which a photosensitive belt is stretched over a plurality of rollers including at least one driving roller, the photosensitive belt of the photosensitive belt is provided. A cover member is provided to cover both ends of the opening, and a brush-shaped shielding member that contacts the outer peripheral surface of the photosensitive belt is bonded to the inner surface of the cover member.
【０００８】[0008]
【作用】請求項１記載の発明では、感光体ベルトの両開
口端部がブラシ状の遮蔽部材により塞がれ、トナーや紙
粉等が感光体ベルト内部に侵入するのが防止され、感光
体ベルトとローラの間にトナーや紙粉等が入り込むのが
防止される。請求項２記載の発明では、感光体ベルトが
回転するとき、ファン部材により、感光体ベルトの一端
側の開口部から他端側の開口部に向かう空気流が発生
し、トナーや紙粉等が感光体ベルト内部に滞るのが防止
され、感光体ベルトとローラの間にトナーや紙粉等が入
り込むのが防止される。According to the first aspect of the present invention, both opening end portions of the photoconductor belt are closed by the brush-like shielding members, and toner and paper dust are prevented from entering the photoconductor belt. Toner, paper dust, and the like are prevented from entering between the belt and the roller. According to the second aspect of the present invention, when the photoconductor belt rotates, the fan member generates an air flow from the opening portion on one end side of the photoconductor belt toward the opening portion on the other end side, so that toner, paper dust, and the like are generated. It is prevented that the toner stays inside the photoconductor belt and that toner, paper dust, and the like enter between the photoconductor belt and the roller.
【０００９】請求項３記載の発明では、感光体ベルトの
両開口端部がカバー部材により覆われ、さらに、該カバ
ー部材の内面と感光体ベルトの外周面の隙間がブラシ状
の遮蔽部材により塞がれる。したがって、トナーや紙粉
等が感光体ベルト内部に侵入するのが防止され、感光体
ベルトとローラの間にトナーや紙粉等が入り込むのが防
止される。According to the third aspect of the present invention, both open ends of the photosensitive belt are covered with the cover member, and the gap between the inner surface of the cover member and the outer peripheral surface of the photosensitive belt is closed by the brush-shaped shielding member. Get off. Therefore, it is possible to prevent the toner, the paper dust, and the like from entering the inside of the photoconductor belt, and prevent the toner, the paper dust, and the like from entering between the photoconductor belt and the roller.
【００１０】[0010]
【実施例】以下、本発明を図面に基づいて説明する。図
１、図２は、本発明に係る電子写真式記録装置の一実施
例を示す図である。まず、構成を説明する。図１、図２
において、11は感光体ベルトであり、感光体ベルト11
は、少なくとも一つの駆動ローラを含む複数のローラに
架け渡されている。本実施例では、駆動ローラ12、クリ
ーニング対向ローラ13およびテンションローラ14の３つ
のローラに感光体ベルト11が架け渡されている。感光体
ベルト11の両開口端近傍の内周面には、ブラシ状の遮蔽
部材15が接着されている。遮蔽部材15は、ベルト部15ａ
およびこのベルト部15ａの内周面に植毛されたブラシ部
15ｂを有している。遮蔽部材15のベルト部15ａの外周面
（図１における斜線部分）が感光体ベルト11の内周面に
接着され、ブラシ部15ｂのブラシ長さは、感光体ベルト
11の開口端を塞ぐ長さに設定されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 and 2 are views showing an embodiment of an electrophotographic recording apparatus according to the present invention. First, the configuration will be described. 1 and 2
In, 11 is a photoconductor belt, and
Are spanned by a plurality of rollers including at least one drive roller. In this embodiment, the photosensitive belt 11 is stretched over three rollers, that is, the driving roller 12, the cleaning facing roller 13 and the tension roller 14. Brush-like shielding members 15 are adhered to the inner peripheral surface of the photosensitive belt 11 near both open ends. The shielding member 15 is the belt portion 15a.
And a brush portion in which the inner peripheral surface of the belt portion 15a is flocked
It has 15b. The outer peripheral surface (hatched portion in FIG. 1) of the belt portion 15a of the shielding member 15 is adhered to the inner peripheral surface of the photoreceptor belt 11, and the brush length of the brush portion 15b is the photoreceptor belt.
It is set to a length that closes 11 open ends.
【００１１】上述のように本実施例によれば、感光体ベ
ルト11の両開口端部がブラシ状の遮蔽部材15により塞が
れ、トナーや紙粉等が感光体ベルト11内部に侵入するの
が防止され、感光体ベルト11とローラ12、13、14の間に
トナーや紙粉等が入り込むのを防止することができる。
したがって、感光体ベルト11とローラ間のスリップを防
止し、感光体ベルト11とローラ間の摩擦係数を安定させ
ることができる。As described above, according to the present embodiment, both opening ends of the photoconductor belt 11 are closed by the brush-like shield member 15, so that toner, paper dust and the like enter the photoconductor belt 11. It is possible to prevent toner and paper dust from entering between the photoconductor belt 11 and the rollers 12, 13, and 14.
Therefore, it is possible to prevent the slip between the photoconductor belt 11 and the roller and stabilize the friction coefficient between the photoconductor belt 11 and the roller.
【００１２】なお、ブラシ状の遮蔽部材15の代わりに、
図３に示すような、例えば発泡ポリウレタン（スポン
ジ）16を感光体ベルト11の両開口端近傍の内周面に接着
していもよい。図４は、請求項２記載の発明に係る電子
写真式記録装置の一実施例を示す図である。なお、感光
体ベルトおよび各ローラの構成は、図１、図２の上述の
実施例と同一なため、これらの図示および説明は省略す
る。Instead of the brush-shaped shield member 15,
As shown in FIG. 3, for example, polyurethane foam (sponge) 16 may be adhered to the inner peripheral surface of the photosensitive belt 11 near both open ends. FIG. 4 is a diagram showing an embodiment of the electrophotographic recording apparatus according to the invention of claim 2. The structures of the photoconductor belt and each roller are the same as those in the above-described embodiments shown in FIGS. 1 and 2, and therefore their illustration and description are omitted.
【００１３】図４において、21はファン部材であり、フ
ァン部材21は、図１の感光体ベルト11の内周面に接着さ
れるベルト部21ａと、感光体ベルト11と共に回転すると
きに感光体ベルト11の一端側の開口部から他端側の開口
部に向かう空気流を発生させる複数の羽根21ｂを有して
いる。本実施例では、感光体ベルト11内部に、一端側か
ら他端側に向う空気流が発生するので、トナーや紙粉等
が感光体ベルト内に滞るのが防止され、感光体ベルトと
ローラの間にトナーや紙粉等が入り込むのを防止するこ
とができる。したがって、本実施例においても感光体ベ
ルトとローラ間のスリップを防止し、感光体ベルトとロ
ーラ間の摩擦係数を安定させることができる。In FIG. 4, 21 is a fan member, and the fan member 21 includes a belt portion 21a adhered to the inner peripheral surface of the photosensitive belt 11 of FIG. 1 and a photosensitive member when rotating with the photosensitive belt 11. The belt 11 has a plurality of blades 21b that generate an air flow from the opening on one end side to the opening on the other end side. In this embodiment, an air flow is generated inside the photoconductor belt 11 from one end side to the other end side, so that toner, paper dust, and the like are prevented from remaining in the photoconductor belt, and the photoconductor belt and the rollers are It is possible to prevent toner, paper dust, and the like from entering between them. Therefore, also in this embodiment, slippage between the photoconductor belt and the roller can be prevented, and the friction coefficient between the photoconductor belt and the roller can be stabilized.
【００１４】図５は、請求項３記載の発明に係る電子写
真式記録装置の一実施例を示す図である。なお、本実施
例においても、感光体ベルトおよび各ローラの構成は図
１、図２に示す実施例と同一であり、各ローラの図示は
省略する。図５において、31は感光体ベルト11の両開口
端部を覆う一対のカバー部材（図５には片側だけを図
示）である。カバー部材31の内面には、感光体ベルト11
の外周面に接触するブラシ状の遮蔽部材32が接着されて
いる。遮蔽部材31のブラシ長さは、ブラシの先端が感光
体ベルト11の外周面に接するような長さに設定されてい
る。FIG. 5 is a diagram showing an embodiment of an electrophotographic recording apparatus according to the invention of claim 3. Also in this embodiment, the structures of the photosensitive belt and each roller are the same as those in the embodiment shown in FIGS. 1 and 2, and the illustration of each roller is omitted. In FIG. 5, 31 is a pair of cover members (only one side is shown in FIG. 5) that covers both open end portions of the photosensitive belt 11. On the inner surface of the cover member 31, the photoconductor belt 11
A brush-shaped shielding member 32 that contacts the outer peripheral surface of the is adhered. The brush length of the shielding member 31 is set such that the tip of the brush contacts the outer peripheral surface of the photoconductor belt 11.
【００１５】本実施例においては、感光体ベルト11の両
開口端がカバー部材31に覆われ、さらに、カバー部材31
の内周面と感光体ベルト11の外周面の隙間がブラシ状の
遮蔽部材32により塞がれているので、トナーや紙粉等が
カバー部材31の内周側から回り込んで感光体ベルト11内
部に侵入するのが防止され、感光体ベルト11とローラの
間にトナーや紙粉等が入り込むのを防止することができ
る。したがって、感光体ベルト11とローラ間のスリップ
を防止し、感光体ベルト11とローラ間の摩擦係数を安定
させることができる。In this embodiment, both open ends of the photosensitive belt 11 are covered with the cover member 31, and the cover member 31
Since the brush-shaped shielding member 32 closes the gap between the inner peripheral surface of the photoconductor belt 11 and the outer peripheral surface of the photoconductor belt 11, toner, paper dust, and the like wrap around from the inner peripheral side of the cover member 31, and the photoconductor belt 11 It is possible to prevent the toner from entering the inside and prevent toner, paper dust, and the like from entering between the photoconductor belt 11 and the roller. Therefore, it is possible to prevent the slip between the photoconductor belt 11 and the roller and stabilize the friction coefficient between the photoconductor belt 11 and the roller.
【００１６】なお、ブラシ状の遮蔽部材32の代わりに、
図３に示す発泡ポリウレタン（スポンジ）16と同様の発
泡材料を、カバー部材31の内周面に接着してもよい。Instead of the brush-shaped shield member 32,
A foam material similar to the polyurethane foam (sponge) 16 shown in FIG. 3 may be adhered to the inner peripheral surface of the cover member 31.
【００１７】[0017]
【発明の効果】請求項１記載の発明によれば、感光体ベ
ルトの両開口端部がブラシ状の遮蔽部材により塞がれて
いるので、トナーや紙粉等が感光体ベルト内部に侵入す
るのを防止することができ、感光体ベルトとローラ間の
摩擦係数を安定させることができる。According to the first aspect of the present invention, since both opening ends of the photoconductor belt are closed by the brush-like shielding members, toner, paper dust, etc. enter the photoconductor belt. Can be prevented, and the coefficient of friction between the photosensitive belt and the roller can be stabilized.
【００１８】請求項２記載の発明によれば、感光体ベル
トが回転するとき、ファン部材により、感光体ベルトの
一端側の開口部から他端側の開口部に向かう空気流が発
生するので、トナーや紙粉等が感光体ベルト内部に滞る
のを防止することができ、感光体ベルトとローラ間の摩
擦係数を安定させることができる。請求項３記載の発明
によれば、感光体ベルトの両開口端部がカバー部材によ
り覆われ、さらに、該カバー部材の内面と感光体ベルト
の外周面の隙間がブラシ状の遮蔽部材により塞がれてい
るので、トナーや紙粉等が感光体ベルト内部に侵入する
のを防止することができ、感光体ベルトとローラ間の摩
擦係数を安定させることができる。According to the second aspect of the invention, when the photoconductor belt rotates, the fan member generates an air flow from the opening on the one end side to the opening on the other end side of the photoconductor belt. It is possible to prevent toner, paper dust, and the like from remaining inside the photoconductor belt, and stabilize the friction coefficient between the photoconductor belt and the roller. According to the third aspect of the present invention, both open end portions of the photosensitive belt are covered with the cover member, and the gap between the inner surface of the cover member and the outer peripheral surface of the photosensitive belt is closed by the brush-shaped shielding member. Therefore, it is possible to prevent toner, paper dust, and the like from entering the inside of the photoconductor belt, and stabilize the friction coefficient between the photoconductor belt and the roller.
【図１】請求項１記載の発明に係る電子写真式記録装置
の一実施例を示すその要部分解斜視図。FIG. 1 is an exploded perspective view of an essential part showing an embodiment of an electrophotographic recording apparatus according to the invention of claim 1.
【図２】図１の装置の感光体ベルト一端側の斜視図。FIG. 2 is a perspective view of one end side of the photosensitive belt of the apparatus shown in FIG.
【図３】図１の装置の遮蔽部材の他の態様を示す斜視
図。FIG. 3 is a perspective view showing another mode of the shielding member of the apparatus shown in FIG.
【図４】請求項２記載の発明に係る電子写真式記録装置
の一実施例を示すそのファン部材の斜視図。FIG. 4 is a perspective view of a fan member showing an embodiment of the electrophotographic recording apparatus according to the invention of claim 2.
【図５】請求項３記載の発明に係る電子写真式記録装置
の一実施例を示すその要部分解斜視図。FIG. 5 is an exploded perspective view of essential parts showing an embodiment of an electrophotographic recording apparatus according to the invention of claim 3.
【図６】従来の電子写真式記録装置の感光体ベルトおよ
びカバー部材の斜視図。FIG. 6 is a perspective view of a photosensitive belt and a cover member of a conventional electrophotographic recording apparatus.
11 感光体ベルト 12、13、14 複数のローラ 15 ブラシ状の遮蔽部材 21 ファン部材 31 カバー部材 32 ブラシ状の遮蔽部材 11 Photoconductor belt 12, 13, 14 Multiple rollers 15 Brush-shaped shielding member 21 Fan member 31 Cover member 32 Brush-shaped shielding member
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ０３Ｂ 27/52 Ｂ 9017−2Ｋ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI technical display location G03B 27/52 B 9017-2K
Claims (3)
ーラを含む複数のローラに架け渡された電子写真式記録
装置において、 前記感光体ベルトの両開口端近傍の内周面に、ブラシ状
の遮蔽部材が接着されたことを特徴とする電子写真式記
録装置。1. An electrophotographic recording apparatus in which a photoconductor belt is spanned by a plurality of rollers including at least one drive roller, wherein a brush-shaped inner surface of the photoconductor belt in the vicinity of both opening ends has a brush shape. An electrophotographic recording apparatus having a shielding member bonded thereto.
ーラを含む複数のローラに架け渡された電子写真式記録
装置において、 前記感光体ベルトの内周面に接着され、感光体ベルトと
共に回転するとき、感光体ベルトの一端側の開口部から
他端側の開口部に向かう空気流を発生させるファン部材
を設けたことを特徴とする電子写真式記録装置。2. An electrophotographic recording apparatus in which a photoconductor belt is stretched over a plurality of rollers including at least one drive roller, and the photoconductor belt is adhered to an inner peripheral surface of the photoconductor belt and rotates together with the photoconductor belt. At this time, the electrophotographic recording apparatus is provided with a fan member for generating an air flow from the opening on one end side of the photoconductor belt toward the opening on the other end side.
ーラを含む複数のローラに架け渡された電子写真式記録
装置において、 前記感光体ベルトの両開口端部を覆うカバー部材を設
け、 該カバー部材の内面に、感光体ベルトの外周面に接触す
るブラシ状の遮蔽部材が接着されたことを特徴とする電
子写真式記録装置。3. An electrophotographic recording apparatus in which a photoconductor belt is spanned by a plurality of rollers including at least one drive roller, and a cover member is provided for covering both open end portions of the photoconductor belt. An electrophotographic recording apparatus, characterized in that a brush-shaped shielding member that comes into contact with the outer peripheral surface of the photosensitive belt is adhered to the inner surface of the member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4190511A JPH0635381A (en) | 1992-05-21 | 1992-07-17 | Electrophotographic recording device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12843692 | 1992-05-21 | ||
| JP4-128436 | 1992-05-21 | ||
| JP4190511A JPH0635381A (en) | 1992-05-21 | 1992-07-17 | Electrophotographic recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0635381A true JPH0635381A (en) | 1994-02-10 |
Family
ID=26464101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4190511A Pending JPH0635381A (en) | 1992-05-21 | 1992-07-17 | Electrophotographic recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635381A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7754236B2 (en) | 2002-06-07 | 2010-07-13 | Hisamitsu Pharmaceutical Co., Inc. | Patch with improved anchoring properties between a substrate and an adhesive |
| US8244152B2 (en) | 2008-11-27 | 2012-08-14 | Oki Data Corporation | Developing device and image forming apparatus |
| JP2013134471A (en) * | 2011-12-27 | 2013-07-08 | Konica Minolta Inc | Image forming device |
-
1992
- 1992-07-17 JP JP4190511A patent/JPH0635381A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7754236B2 (en) | 2002-06-07 | 2010-07-13 | Hisamitsu Pharmaceutical Co., Inc. | Patch with improved anchoring properties between a substrate and an adhesive |
| US8244152B2 (en) | 2008-11-27 | 2012-08-14 | Oki Data Corporation | Developing device and image forming apparatus |
| JP2013134471A (en) * | 2011-12-27 | 2013-07-08 | Konica Minolta Inc | Image forming device |
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