JPS59218479A - Cleaning device of image forming face - Google Patents
Cleaning device of image forming faceInfo
- Publication number
- JPS59218479A JPS59218479A JP9350783A JP9350783A JPS59218479A JP S59218479 A JPS59218479 A JP S59218479A JP 9350783 A JP9350783 A JP 9350783A JP 9350783 A JP9350783 A JP 9350783A JP S59218479 A JPS59218479 A JP S59218479A
- Authority
- JP
- Japan
- Prior art keywords
- rotary brush
- image forming
- rotating
- turning arm
- forming surface
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
- G03G21/0035—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a brush; Details of cleaning brushes, e.g. fibre density
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/0005—Cleaning of residual toner
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
【発明の詳細な説明】
囚 発明の技術分野
本発明は電子写真記録方式あるいは静電記録方式の複写
装置や印刷装置に備えられ、像形成面の残留トナーなど
による汚れを清掃する像形成面クリーニング装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to an image forming surface cleaning device which is provided in an electrophotographic recording method or an electrostatic recording method copying device or printing device, and which cleans stains caused by residual toner on the image forming surface. Regarding equipment.
■)技術の背景
電子写真式記録装置あるいは静電記録装置においては、
通常、回転ドラムの円筒面を像形成面として用い、像形
成面に形成したトナー像を記録媒体に転写することによ
って記録をおこなうのであすに像形成面に残留し、した
がって、これを除去するため像形成面クリーニング装置
を設けている。■) Technical background In electrophotographic recording devices or electrostatic recording devices,
Normally, the cylindrical surface of a rotating drum is used as the image forming surface, and recording is performed by transferring the toner image formed on the image forming surface to a recording medium, so that it remains on the image forming surface and must be removed. An imaging surface cleaning device is provided.
(Q 従来技術と問題点
第1図は回転ドラムの円筒面を像形成面として用いる方
式の電子写真式記録装置の略示構成図を示し、1は回転
ドラム、2は潜像形成部(図示省略)によって回転ドラ
ム1の円筒面に形成した静電潜像を現像しトナー像を得
る現像部、3は記録媒体すなわち記録用紙、4は現像部
2によって回転ドラム1の円筒面に形成されたトナー像
を記録媒体3に転写する転写部、5−1・5−2・5・
3および5−4は像形成体クリーニング装置5′を構成
し、5−1はケーシング、5−2は回転ドラム1の円筒
面の残留トナーを払拭する回転ブラシ、5−3は回転ブ
ラシ5−2に付着したトナーを叩落すブレード、5−4
は回転ブラシ5−2から叩落されたトナーを空気ととも
に吸引する吸引ダクトである0
回転ブラシ5−2は紙筒と紙筒の外周に植設されたレー
ヨン・テフロンある艷は兎毛などのブラシから構成され
ているが、前述のように回転ドラム1の円筒面と接触し
て回転し且つブレード5−3によって叩かれるため、回
転ドラム1あるいはブレード5−3との接触部が使用中
に次第に摩耗あるいは変形し第2図に示す横断面図のよ
うに外径がDoからり、のように変形するにいたる。(Q. Prior Art and Problems) Figure 1 shows a schematic configuration diagram of an electrophotographic recording device using the cylindrical surface of a rotating drum as an image forming surface, where 1 is a rotating drum, 2 is a latent image forming section (not shown). A developing section which develops an electrostatic latent image formed on the cylindrical surface of the rotating drum 1 by the developing section 2 (omitted) to obtain a toner image; 3 is a recording medium, that is, recording paper; 4 is a developing section 2 formed on the cylindrical surface of the rotating drum 1; A transfer unit that transfers the toner image onto the recording medium 3, 5-1, 5-2, 5,
3 and 5-4 constitute an image forming body cleaning device 5', 5-1 is a casing, 5-2 is a rotating brush for wiping off residual toner on the cylindrical surface of the rotating drum 1, and 5-3 is a rotating brush 5- A blade for knocking off toner attached to 2, 5-4
is a suction duct that sucks the toner knocked down from the rotating brush 5-2 together with air.The rotating brush 5-2 has a paper tube and a rayon/Teflon material attached to the outer periphery of the paper tube. Although it is composed of a brush, as mentioned above, it rotates in contact with the cylindrical surface of the rotating drum 1 and is struck by the blade 5-3, so that the contact part with the rotating drum 1 or the blade 5-3 is damaged during use. It gradually wears out or deforms, and as shown in the cross-sectional view of FIG. 2, the outer diameter changes to Do and deforms as shown.
一方、従来の像形成面クリーニング装置においては、回
転ブラシ5−2の回転軸を回転ドラム1の回転軸に対し
平行且つ固定して設けておシ、したがって、前述のよう
な回転ブラシ5−2の変形によって回転ブラシ5−2と
回転ドラム1の円筒面との接触圧が減少し、これに伴っ
て回転ブラシ5−2によるクリーニング効果が減少する
という問題があった。On the other hand, in the conventional image forming surface cleaning device, the rotating shaft of the rotating brush 5-2 is fixed and parallel to the rotating shaft of the rotating drum 1. Due to this deformation, the contact pressure between the rotating brush 5-2 and the cylindrical surface of the rotating drum 1 decreases, and there is a problem in that the cleaning effect of the rotating brush 5-2 decreases accordingly.
■ 発明の目的
本発明の目的は、回転ブラシ式の像形成面クリーニング
装置において、回転ブラシの摩耗あるいは変形によるク
リーニング効果の減少を防止することにある。(2) Purpose of the Invention An object of the present invention is to prevent the cleaning effect from being reduced due to wear or deformation of the rotary brush in a rotary brush type image forming surface cleaning device.
(リ 発明の構成
本発明になる像形成面クリーニング装置は、像形成面に
形成したトナー像を記録媒体に転写して記録する電子写
真式記録装置もしくは静電記録装置に備えられ前記像形
成面を清掃する回転ブラシ式の像形成面クリーニング装
置において、前記像形成面に対し接近離間するように回
動する回動アームを設け、前記回転ブラシの回転軸を前
記回動アームに保持するようにしたものである。(I) Structure of the Invention The image forming surface cleaning device of the present invention is provided in an electrophotographic recording device or an electrostatic recording device that transfers and records a toner image formed on an image forming surface to a recording medium, and is installed on the image forming surface. A rotating brush type image forming surface cleaning device for cleaning the image forming surface includes a rotating arm that rotates toward and away from the image forming surface, and a rotating shaft of the rotating brush is held by the rotating arm. This is what I did.
C)発明の実施例
以下に本発明の要旨を実施例によって具体的に説明する
。C) Examples of the Invention The gist of the present invention will be specifically explained below with reference to Examples.
第3図は本発明一実施例の構成を示し、第1図と共通す
る符号は同一対象物を示すほか、6は回転ドラムlの回
転軸に対し平行且つ同定して設けられ後記回動アーム7
を支持する支持軸、7は支持軸6に関し回動自在に支持
され且つ一方の端部において回転ブラシ5−2の回転軸
を保持する回動ブーム、8は回動アーム7の他方の端部
に設けられるカウンタウェイト、9は回動アーム7が回
転ドラム1に対し所定距離以下に接近することを防止す
るストッパ、10は回転ブラシ5−2の摩耗を検出する
ホトセンサである。FIG. 3 shows the configuration of an embodiment of the present invention, in which the same reference numerals as in FIG. 7
7 is a rotating boom rotatably supported on the support shaft 6 and holds the rotating shaft of the rotating brush 5-2 at one end; 8 is the other end of the rotating arm 7; 9 is a stopper that prevents the rotary arm 7 from approaching the rotary drum 1 less than a predetermined distance, and 10 is a photo sensor that detects wear of the rotary brush 5-2.
以上のような構成によシ、回転プラク5−2は回動アー
ム7によって保持され且つ支持軸6に関し回動自在処支
持される。したがって回転ブラシ5−2は摩耗あるいは
変形等によって回転ブラシ5−2の外径が第2図のよう
に変形しても、回動アーム7がストッパ9に当らない限
り、常に回転ブラシ5−2の重量・カウンタウェイト8
の重量・支持軸6から回転ブラシ5−2の重力作用線ま
での距離および支持軸6からカウンタウェイト8の重力
作用線までの距離等によって定まるはソ一定の接触圧に
よって回転ドラム1の円筒面に接触し、これによって常
に安定したクリーニング効果が得られる。With the above structure, the rotary plaque 5-2 is held by the rotary arm 7 and rotatably supported about the support shaft 6. Therefore, even if the outer diameter of the rotating brush 5-2 is deformed as shown in FIG. 2 due to wear or deformation, the rotating brush 5-2 is always Weight/Counterweight 8
The cylindrical surface of the rotating drum 1 is determined by the weight, the distance from the support shaft 6 to the line of gravity of the rotating brush 5-2, the distance from the support shaft 6 to the line of gravity of the counterweight 8, etc. , thereby consistently providing a stable cleaning effect.
また、回転ブラシ5−2の外径の減少を回動アームとホ
トセンサ10とによって検出することにより、回転ブラ
シ5−2の摩耗量すなわち寿命を容易且つ目!助的に検
出することができる。第4図はホトセンサ10の構成例
を示し、1o−1は発光ダイオード、10−2はホトダ
イオードである。Furthermore, by detecting a decrease in the outer diameter of the rotating brush 5-2 using the rotating arm and the photo sensor 10, the amount of wear, that is, the lifespan of the rotating brush 5-2 can be easily and easily reduced. can be detected auxiliary. FIG. 4 shows an example of the configuration of the photosensor 10, in which 1o-1 is a light emitting diode and 10-2 is a photodiode.
(G) 発明の詳細
な説明したように、本発明によれば常に安定したクリー
ニング効果が得られ、したがってすぐれた記録品質を維
持することができる。(G) Detailed Description of the Invention As described above, according to the present invention, a stable cleaning effect can always be obtained, and therefore excellent recording quality can be maintained.
第1図は電子写真式記録装置の略示構成図、第2図は回
転ブラシの横断面図、第3図は本発明一実施例の構成図
、第4図はホトセンサの構成例を示す。
図中、1は回転ドラム、5−2は回転ブラシ。
6は支持軸、7は回動アームである。FIG. 1 is a schematic configuration diagram of an electrophotographic recording apparatus, FIG. 2 is a cross-sectional view of a rotating brush, FIG. 3 is a configuration diagram of an embodiment of the present invention, and FIG. 4 is a configuration example of a photosensor. In the figure, 1 is a rotating drum, and 5-2 is a rotating brush. 6 is a support shaft, and 7 is a rotating arm.
Claims (1)
する電子写真記録装置もしくは静電記録装置に備えられ
前記像形成面を清掃する回転ブラシ式の像形成面クリー
ニング装置において、前記像形成面に対し接近離間する
ように回動する回動アームを設け、前記回転ブラシの回
転軸を前記回動アームに保持することを特徴とする像形
成面クリーニング装置。In a rotating brush type image forming surface cleaning device that is installed in an electrophotographic recording device or an electrostatic recording device that transfers and records a toner image formed on an image forming surface onto a recording medium and cleans the image forming surface, the image forming surface is An image forming surface cleaning device comprising: a rotating arm that rotates toward and away from the surface; and a rotating shaft of the rotating brush is held by the rotating arm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9350783A JPS59218479A (en) | 1983-05-27 | 1983-05-27 | Cleaning device of image forming face |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9350783A JPS59218479A (en) | 1983-05-27 | 1983-05-27 | Cleaning device of image forming face |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59218479A true JPS59218479A (en) | 1984-12-08 |
Family
ID=14084258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9350783A Pending JPS59218479A (en) | 1983-05-27 | 1983-05-27 | Cleaning device of image forming face |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59218479A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0562811A2 (en) * | 1992-03-27 | 1993-09-29 | Xerox Corporation | Apparatus for monitoring wear of a toner removal device |
EP0809159A2 (en) * | 1996-05-20 | 1997-11-26 | Xerox Corporation | A method of determining cleaning brush nip width |
EP1288738A2 (en) | 2001-09-04 | 2003-03-05 | Ricoh Company, Ltd. | Image forming apparatus and cleaning device therefor |
EP1353238A2 (en) * | 2002-04-12 | 2003-10-15 | Ricoh Company, Ltd. | Image forming apparatus |
-
1983
- 1983-05-27 JP JP9350783A patent/JPS59218479A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0562811A2 (en) * | 1992-03-27 | 1993-09-29 | Xerox Corporation | Apparatus for monitoring wear of a toner removal device |
EP0562811A3 (en) * | 1992-03-27 | 1994-08-03 | Xerox Corp | |
EP0809159A2 (en) * | 1996-05-20 | 1997-11-26 | Xerox Corporation | A method of determining cleaning brush nip width |
EP0809159A3 (en) * | 1996-05-20 | 1998-03-04 | Xerox Corporation | A method of determining cleaning brush nip width |
EP1288738A2 (en) | 2001-09-04 | 2003-03-05 | Ricoh Company, Ltd. | Image forming apparatus and cleaning device therefor |
EP1288738A3 (en) * | 2001-09-04 | 2003-05-28 | Ricoh Company, Ltd. | Image forming apparatus and cleaning device therefor |
EP1353238A2 (en) * | 2002-04-12 | 2003-10-15 | Ricoh Company, Ltd. | Image forming apparatus |
EP1353238A3 (en) * | 2002-04-12 | 2004-05-19 | Ricoh Company, Ltd. | Image forming apparatus |
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