JPS6217828Y2 - - Google Patents
Info
- Publication number
- JPS6217828Y2 JPS6217828Y2 JP960979U JP960979U JPS6217828Y2 JP S6217828 Y2 JPS6217828 Y2 JP S6217828Y2 JP 960979 U JP960979 U JP 960979U JP 960979 U JP960979 U JP 960979U JP S6217828 Y2 JPS6217828 Y2 JP S6217828Y2
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- elastic member
- photoconductor
- cleaning
- sealing material
- 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.)
- Expired
Links
- 108091008695 photoreceptors Proteins 0.000 claims description 37
- 238000004140 cleaning Methods 0.000 claims description 33
- 239000003566 sealing material Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は、電子写真複写機用感光体のクリーニ
ング装置、詳しくは、トナーの流出を防ぐ密封手
段を具備したクリーニング装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning device for a photoreceptor for an electrophotographic copying machine, and more particularly, to a cleaning device equipped with a sealing means for preventing toner from flowing out.
一般に、電子写真複写機においては、感光体上
に各種プロセスによつて静電潜像を形成した後現
像装置によつて可視化し、該可視像を転写した
後、感光体表面をブレード、ウエブ等の弾性部材
により清掃し繰返し使用される。そして、ブレー
ド、ウエブ等の弾性部材により感光体表面をクリ
ーニングする場合、弾性部材を感光体表面に圧接
せしめ摺擦拭掃することによつて行なつている。
したがつて、コピー終了に伴ない感光体が停止す
ると、弾性部材が感光体の一定位置に常時圧接し
感光体の一定位置に長期間圧力が加わることにな
つて、感光体の変質が生じる不具合がある。 Generally, in an electrophotographic copying machine, an electrostatic latent image is formed on a photoreceptor through various processes, then visualized by a developing device, and after the visible image is transferred, the surface of the photoreceptor is covered with a blade or a web. It is cleaned with an elastic member such as and used repeatedly. When cleaning the surface of the photoreceptor with an elastic member such as a blade or web, the elastic member is brought into pressure contact with the surface of the photoreceptor and the cleaning is performed by sliding and wiping.
Therefore, when the photoconductor stops when copying is completed, the elastic member constantly presses against a certain position of the photoconductor, and pressure is applied to a certain position of the photoconductor for a long period of time, resulting in a problem that the quality of the photoconductor changes. There is.
この感光体の変質が生じる不具合を解消するた
め、感光体の停止中は、弾性部材を感光体表面よ
り離すことが行なわれているが、弾性部材を感光
体表面から離すと、弾性部材と感光体表面との間
に隙間ができ、この隙間からクリーニング装置内
のトナークラウドが流出し、機内汚れを発生させ
る不具合があり、このトナークラウドによる機内
汚れは、高速機において顕著である。 In order to eliminate this problem that causes deterioration of the photoconductor, the elastic member is separated from the photoconductor surface while the photoconductor is stopped. A gap is formed between the cleaning device and the body surface, and the toner cloud inside the cleaning device flows out through this gap, causing dirt inside the machine.The dirt inside the machine due to this toner cloud is noticeable in high-speed machines.
このトナークラウドによる機内汚れの不具合を
解消するため、特開昭51−78341号公報に示され
ている如く、感光体の停止中すなわち非クリーニ
ング時は、クリーニング中の印加圧力より弱い接
触圧力で弾性部材を感光体に接触させ、クリーニ
ング装置内のトナークラウドの流出を防ぎ機内汚
れの発生を防止するものも提案されているが、こ
れは、クリーニング時及び非クリーニング時を問
わず、同一の弾性部材が感光体に常時接触してい
るため、弾性部材の損耗が激しいばかりか、弾性
部材と感光体との摩擦帯電による静電潜像への悪
影響及び感光体が傷つく等の不具合があり、しか
も弾性部材は、クリーニング用であるから、材
質、形状及び接触方法等に種々の制約があり、延
いては高価なものとなる欠点がある。 In order to eliminate the problem of contamination inside the machine due to toner cloud, as shown in Japanese Patent Application Laid-Open No. 78341/1987, when the photoconductor is stopped, that is, when not being cleaned, the contact pressure applied during cleaning is lower than that applied during cleaning. A method has also been proposed in which a member is brought into contact with the photoconductor to prevent the toner cloud from flowing out inside the cleaning device and prevent dirt from forming inside the device. Since it is in constant contact with the photoconductor, not only is the elastic member subject to severe wear and tear, but also there are problems such as frictional charging between the elastic member and the photoconductor, which adversely affects the electrostatic latent image and damages the photoconductor. Since the member is used for cleaning, there are various restrictions on the material, shape, contact method, etc., and the disadvantage is that it is expensive.
本考案は、上記事情に鑑み案出されたものであ
つて、感光体の停止時においてもクリーニング用
弾性部材による感光体の変質を防ぐと共に、クリ
ーニング装置内のトナークラウドの流出を防止し
て機内汚れの発生の惧れにない安価な電子写真複
写機用感光体のクリーニング装置を提供すること
を目的とするものである。 The present invention was devised in view of the above-mentioned circumstances, and it prevents deterioration of the photoconductor by the cleaning elastic member even when the photoconductor is stopped, and also prevents the toner cloud inside the cleaning device from flowing out. It is an object of the present invention to provide an inexpensive cleaning device for a photoreceptor for an electrophotographic copying machine that is free from the risk of staining.
以下図面に基づいて本考案の実施例を説明す
る。 Embodiments of the present invention will be described below based on the drawings.
第１図及び第２図はその実施例を示すもので、
１はドラム状の感光体、２は前記感光体１の周囲
所定位置に配設されたクリーナーボツクスであ
る。 Figures 1 and 2 show examples of the implementation.
1 is a drum-shaped photoreceptor; 2 is a cleaner box disposed at a predetermined position around the photoreceptor 1;
前記クリーナーボツクス２内の所定位置には、
レバー３がブラケツト４を介して固定軸５に揺動
可能に取付けられており、前記レバー３の一端部
すなわち前記感光体寄り部には、ホルダ６を介し
てクリーニング用弾性部材７及び取付部材８を介
してシール材９が所定の間隔を保持して二股状に
取付られており、前記レバー３に取付けられた
（図示しない）重錘、スプリング等により、第１
図に示すように、常時、前記クリーニング用弾性
部材７の先端が感光体１の表面に適正圧力で当接
し、かつ前記シール材９が感光体１の表面から離
れるように配設されており、したがつて感光体１
が矢印Ａ方向に回転中は前記クリーニング用弾性
部材７により感光体１の表面はクリーニングされ
る。 At a predetermined position in the cleaner box 2,
A lever 3 is swingably attached to a fixed shaft 5 via a bracket 4, and a cleaning elastic member 7 and a mounting member 8 are attached via a holder 6 to one end of the lever 3, that is, to the photoreceptor side. A sealing material 9 is attached in a bifurcated manner with a predetermined spacing therebetween, and a weight (not shown), a spring, etc. attached to the lever 3
As shown in the figure, the tip of the cleaning elastic member 7 is always in contact with the surface of the photoconductor 1 with appropriate pressure, and the sealing material 9 is arranged so as to be separated from the surface of the photoconductor 1, Therefore, photoreceptor 1
While rotating in the direction of arrow A, the surface of the photoreceptor 1 is cleaned by the cleaning elastic member 7.
また、前記レバー３の他端は、フツク部材１０
を介してソレノイド１１に連係されており、前記
感光体１の停止と殆んど同時に前記ソレノイド１
１が励磁され、前記重錘、スプリング（図示せ
ず）の付勢力に抗して、前記フツク部材１０を介
して前記レバー３の他端を持ち上げることによ
り、第２図に示すように、前記クリーニング用弾
性部材７の先端が感光体１の表面から離れ、前記
シール材９が感光体１の表面に適正圧力で接触
し、トナークラウドの流出を防ぐものである。 Further, the other end of the lever 3 is connected to a hook member 10.
The solenoid 1 is connected to the solenoid 11 via the solenoid 11, and the solenoid 1
1 is energized, and by lifting the other end of the lever 3 via the hook member 10 against the biasing force of the weight and the spring (not shown), as shown in FIG. The tip of the cleaning elastic member 7 is separated from the surface of the photoconductor 1, and the sealing material 9 contacts the surface of the photoconductor 1 with appropriate pressure, thereby preventing the toner cloud from flowing out.
なお、前記シール材９の感光体１への接触位置
はクリーナーボツクス２の端部付近がよく、また
前記シール材９の材料としては感光体１を変質さ
せない圧力で接する軟質なもの、例えばポリウレ
タンフオーム等が好適であり、感光体１を変質さ
せないものであれば、ゴム、フエルト等でもよい
ものであり、前記クリーニング用弾性部材７の材
料としては通常ポリウレタンゴム等が用いられ
る。 The contact position of the sealing material 9 with the photoreceptor 1 is preferably near the end of the cleaner box 2, and the material of the sealing material 9 is a soft material that can contact the photoreceptor 1 with pressure that does not change its quality, such as polyurethane foam. Rubber, felt, etc. may be used as long as they do not alter the quality of the photoreceptor 1. As the material for the cleaning elastic member 7, polyurethane rubber or the like is usually used.
また、シール材９は、第３図に示すように、レ
バー３に直接取付けてもよく、第４図に示すよう
に、プラスチツクフイルムを用い、その先端部が
感光体１の表面に摺接するようにしてもよいもの
であつて、感光体１の表面に摺接しトナークラウ
ドの流出を防止するものであればよく、シール材
９の取付け位置についても、クリーナーボツクス
２の上方位置、下方位置いずれでもよい。 Furthermore, the sealing material 9 may be attached directly to the lever 3 as shown in FIG. 3, or may be a plastic film with its tip in sliding contact with the surface of the photoreceptor 1 as shown in FIG. 4. Any material may be used as long as it slides against the surface of the photoreceptor 1 to prevent the outflow of toner clouds, and the mounting position of the sealing material 9 may be either above or below the cleaner box 2.
さらにまた、第５図に示すように、クリーニン
グ用弾性部材７を取付けた第１レバー３１の他
に、シール材９を取付けた第２レバー３２をそれ
ぞれ揺動自在に設け、それぞれのレバー３１，３
２をソレノイド１１により操作することにより、
感光体１の回転中はクリーニング用弾性部材７が
感光体１の表面に、感光体１の停止中はシール材
９が感光体１の表面に当接するようにしてもよ
い。 Furthermore, as shown in FIG. 5, in addition to the first lever 31 to which the cleaning elastic member 7 is attached, a second lever 32 to which the sealing material 9 is attached is provided in a swingable manner, and each lever 3 1 , 3
2 by operating the solenoid 11,
The cleaning elastic member 7 may be in contact with the surface of the photoreceptor 1 while the photoreceptor 1 is rotating, and the sealing material 9 may be in contact with the surface of the photoreceptor 1 while the photoreceptor 1 is stopped.
本考案に係るクリーニング装置は、上述のよう
に、感光体１の周囲所定位置に配設されたクリー
ナーボツクス２と、該クリーナーボツクス２の内
部にあつて前記感光体１周面に対向して設けられ
たクリーニング用弾性部材７と、前記クリーナー
ボツクス２の端部付近に設けられかつ当該クリー
ナーボツクス２と前記感光体１周面との隙間を封
止するためのシール材９とを有し、前記感光体１
表面に対し、当該感光体１の動作時には前記クリ
ーニング用弾性部材７を当接すると共に前記シー
ル材９を離間し、当該感光体１の停止時には前記
シール材９を当接すると共に前記クリーニング用
弾性部材７を離間させる手段を有するから、感光
体１の動作中は、クリーニング用弾性部材７が感
光体１の表面に接して感光体１の表面を確実にク
リーニングし、また感光体１の停止中は、クリー
ニング用弾性部材７が感光体１の表面から離れる
ので、クリーニング用弾性部材７が感光体１の一
定位置に接するようなことがなく、感光体１の変
質を防ぐと共に、クリーニング用弾性部材７の寿
命を増大し、しかも感光体１の停止中は、シール
材９が感光体１の表面に接しているので、トナー
クラウドの流出を防ぎ機内汚れの発生を防止する
ものであり、かつシール材９はトナークラウドの
流出を防ぐだけのものであるから、材質、形状及
び接触方法等に格別の制約を受けず、延いては安
価なものとなるのであり、特に、感光体１の停止
時、シール材９を感光体１表面に当接させる手段
を有しているので、シール材９は確実に感光体１
表面に接触しトナークラウドの流出を機械的に、
より確実に防止することができるものである。 As described above, the cleaning device according to the present invention includes a cleaner box 2 disposed at a predetermined position around the photoconductor 1, and a cleaner box 2 disposed inside the cleaner box 2 facing the circumferential surface of the photoconductor 1. a cleaning elastic member 7, and a sealing material 9 provided near an end of the cleaner box 2 for sealing a gap between the cleaner box 2 and the circumferential surface of the photoreceptor 1; Photoreceptor 1
When the photoreceptor 1 is in operation, the cleaning elastic member 7 is brought into contact with the surface and the sealing material 9 is separated from the surface, and when the photoreceptor 1 is stopped, the sealing material 9 is brought into contact with the surface and the cleaning elastic member 7 is brought into contact with the surface. Since the cleaning elastic member 7 contacts the surface of the photoreceptor 1 to reliably clean the surface of the photoreceptor 1 while the photoreceptor 1 is in operation, and while the photoreceptor 1 is stopped, Since the cleaning elastic member 7 is separated from the surface of the photoconductor 1, the cleaning elastic member 7 does not come into contact with a certain position of the photoconductor 1, which prevents deterioration of the photoconductor 1 and also prevents the cleaning elastic member 7 from coming into contact with a certain position of the photoconductor 1. In addition, since the sealing material 9 is in contact with the surface of the photoconductor 1 while the photoconductor 1 is stopped, the sealing material 9 prevents the outflow of the toner cloud and prevents the occurrence of dirt inside the machine. Since the seal only prevents the toner cloud from flowing out, there are no particular restrictions on the material, shape, contact method, etc., and the seal is inexpensive. Since the sealing material 9 is provided with a means for bringing the material 9 into contact with the surface of the photoreceptor 1, the sealing material 9 is reliably attached to the photoreceptor 1.
Mechanically prevents the toner cloud from flowing out by contacting the surface.
This can be prevented more reliably.
図面は本考案の実施例を示すもので、第１図は
感光体が動作している状態を示す一部切欠側面
図、第２図は感光体が停止している状態を示す一
部切欠側面図、第３図、第４図及び第５図は他の
態様を示す一部切欠側面図である。
１は感光体、２はクリーナーボツクス、７はク
リーニング用弾性部材、９はシール材。
The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway side view showing the photoreceptor in operation, and FIG. 2 is a partially cutaway side view showing the photoreceptor at rest. 3, 4, and 5 are partially cutaway side views showing other embodiments. 1 is a photoreceptor, 2 is a cleaner box, 7 is an elastic member for cleaning, and 9 is a sealing material.
Claims (1)
ーボツクス２と、該クリーナーボツクス２の内部
にあつて前記感光体１周面に対向して設けられた
クリーニング用弾性部材７と、前記クリーナーボ
ツクス２の端部付近に設けられかつ当該クリーナ
ーボツクス２と前記感光体１周面との隙間を封止
するためのシール材９とを有し、前記感光体１表
面に対し、当該感光体１の動作時には前記クリー
ニング用弾性部材７を当接すると共に前記シール
材９を離間させ、当該感光体１の停止時には前記
シール材９を当接すると共に前記クリーニング用
弾性部材７を離間させる手段を有することを特徴
とする電子写真複写機用感光体のクリーニング装
置。 A cleaner box 2 disposed at a predetermined position around the photoreceptor 1, a cleaning elastic member 7 provided inside the cleaner box 2 facing the circumferential surface of the photoreceptor 1, and the cleaner box 2. A sealing material 9 is provided near the end of the cleaner box 2 to seal a gap between the cleaner box 2 and the circumferential surface of the photoreceptor 1. It is characterized by having means for sometimes bringing the cleaning elastic member 7 into contact and separating the sealing material 9, and when the photoreceptor 1 is stopped, means for bringing the sealing material 9 into contact and separating the cleaning elastic member 7. A photoconductor cleaning device for electrophotographic copying machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP960979U JPS6217828Y2 (en) | 1979-01-30 | 1979-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP960979U JPS6217828Y2 (en) | 1979-01-30 | 1979-01-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55111250U JPS55111250U (en) | 1980-08-05 |
| JPS6217828Y2 true JPS6217828Y2 (en) | 1987-05-08 |
Family
ID=28820691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP960979U Expired JPS6217828Y2 (en) | 1979-01-30 | 1979-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6217828Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012020620A1 (en) * | 2010-08-10 | 2012-02-16 | コニカミノルタホールディングス株式会社 | Cleaning device and wet-type image formation device |
-
1979
- 1979-01-30 JP JP960979U patent/JPS6217828Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55111250U (en) | 1980-08-05 |
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