JPS59218479A - Cleaning device of image forming face - Google Patents

Cleaning device of image forming face

Info

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
Application number
JP9350783A
Other languages
Japanese (ja)
Inventor
Kazuhiro Ikeda
和広 池田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9350783A priority Critical patent/JPS59218479A/en
Publication of JPS59218479A publication Critical patent/JPS59218479A/en
Pending legal-status Critical Current

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

PURPOSE:To prevent the degradation of the cleaning effect due to the wear or deformation of a rotary brush by providing a turning arm which is so turned that it approaches an image forming face to space it and holding the rotary brush on this turning arm. CONSTITUTION:The rotary brush 5-2 is held by the turning arm 7 and is supported freely turnably with respect to a supporting shaft 6. Consequently, even if the outside diameter of the rotary brush 5-2 is changed by wear, deformation, or the like, the rotary brush 5-2 is always brought into contact with a cylindrical surface of a rotary drum 1 with an approximately constant contacting pressure which is determined by the weight of the rotary brush 5-2, the weight of a counter weight 8, and distances from the supporting shaft 6 to individual gravity action lines, unless the turning arm 7 strikes a stopper 9, and thus, a stable cleaning effect is always attained. The outside diameter of the rotary brush 5-2 is detected by a photosensor 10 to detect automatically the quantity of wear of the rotary brush 5-2.

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.

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【特許請求の範囲】[Claims] 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.
JP9350783A 1983-05-27 1983-05-27 Cleaning device of image forming face Pending JPS59218479A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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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