JPS6057040A - Correction method for belt meandering - Google Patents

Correction method for belt meandering

Info

Publication number
JPS6057040A
JPS6057040A JP58164556A JP16455683A JPS6057040A JP S6057040 A JPS6057040 A JP S6057040A JP 58164556 A JP58164556 A JP 58164556A JP 16455683 A JP16455683 A JP 16455683A JP S6057040 A JPS6057040 A JP S6057040A
Authority
JP
Japan
Prior art keywords
belt
meandering
magnetic
magnetic recording
windings
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.)
Granted
Application number
JP58164556A
Other languages
Japanese (ja)
Other versions
JPS6158698B2 (en
Inventor
Toshifumi Kimoto
木本　俊史
Mitsuhiko Itami
伊丹　光彦
Akira Yamazawa
山沢　亮
Eiji Nishikawa
西川　英二
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP58164556A priority Critical patent/JPS6057040A/en
Publication of JPS6057040A publication Critical patent/JPS6057040A/en
Publication of JPS6158698B2 publication Critical patent/JPS6158698B2/ja
Granted 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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
    • G03G15/754—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to band, e.g. tensioning
    • G03G15/755—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to band, e.g. tensioning for maintaining the lateral alignment of the band
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00135—Handling of parts of the apparatus
    • G03G2215/00139—Belt
    • G03G2215/00143—Meandering prevention
    • G03G2215/00156—Meandering prevention by controlling drive mechanism
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00135—Handling of parts of the apparatus
    • G03G2215/00139—Belt
    • G03G2215/00143—Meandering prevention
    • G03G2215/0016—Meandering prevention by mark detection, e.g. optical

Abstract

PURPOSE:To correct the windings of a belt reliably and simply by forming an A.C. magnetized body on a part of the belt and further by correcting the windings of the belt in accordance with the detection of the A.C. magnetized body with a magnetic sensor. CONSTITUTION:A.C. magnetized bodies 8, 9 are formed along the periphery of a belt 1 for approximately full length of the belt, while first and second magnetic sensors 10, 11 are fixed at several milimeters away from the surface of the belt 1. The output of the magnetic sensors is input to a driver circuit. Thus the A.C. magnetized bodies 8, 9 are detected by the magnetic sensors 10, 11 and a reversible motor 5 is driven in accordance with the detected signal. Consequently, the windings of the belt 1 can be corrected in a simple and reliable manner.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ベルトの蛇行修正方法に係り、特に、電子写
真プリンターや磁気写真プリンター等に用いられるベル
ト状記録媒体の蛇行を修正する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for correcting meandering of a belt, and particularly relates to a method for correcting meandering of a belt-shaped recording medium used in electrophotographic printers, magnetic photographic printers, etc. .

〔従来技術〕[Prior art]

従来、ベルトの蛇行を修正する方法としては、主として
機械的な方法と電気的な方法の２つが用いられている。Conventionally, two main methods have been used to correct belt meandering: a mechanical method and an electrical method.

これらのうち、機械的な方法としては、ベルトを回転す
るための軸ローラーの両端にはみ出し防止用のストッパ
ーを設ける方法、ベルトに多数個の小孔を配列してスプ
ロケットで駆動する方法、軸ローラーにゴムを巻き、ゴ
ムの摩擦力によってベルトの位置ずれを防止する方法、
軸の方向を自由回転可能としたジンバルロールを用いる
方法等、さまざまな方法が考えられている。Among these, mechanical methods include a method in which stoppers are provided at both ends of the shaft roller for rotating the belt to prevent it from protruding, a method in which a large number of small holes are arranged in the belt and driven by a sprocket, and a method in which the shaft roller is driven by a sprocket. A method of wrapping rubber around the belt and using the frictional force of the rubber to prevent the belt from shifting.
Various methods have been considered, such as a method using a gimbal roll whose axis can freely rotate.

しかしながら、これらの方法はいずれも、一度蛇行を始
めるとそれを抑制しようとする作用は働かないため、ベ
ルトに損傷を与えることが多かった。However, in all of these methods, once the meandering starts, no action is taken to suppress the meandering, which often results in damage to the belt.

従って、蛇行を防止するには部品精度ととりつけ精度に
細心の注意をはかることが要求されていた。Therefore, in order to prevent meandering, it has been necessary to pay close attention to component accuracy and mounting accuracy.

一方、電気的に行なう方法としては、ベルトの端を光セ
ンサ等によって検出し、ベルトの方向を修正すべく、軸
ローラに信号をフィードバンクする方法が考えられてお
り、この方法は有効な方法である。しかしながら、かか
る方法も、複写機やプリンター等のベルト状記録媒体に
用いた場合は、固有の機内汚染や、トナー粉塵の影響を
受け、センサー部が汚染されるため、ベルトの有無を光
の強弱で検知するセンサーが、しばしば誤動作を起すと
いう不都合があった。On the other hand, as an electrical method, a method has been considered in which the end of the belt is detected by an optical sensor, etc., and a signal is fed to the shaft roller in order to correct the direction of the belt.This method is an effective method. It is. However, when this method is used for belt-shaped recording media such as copiers and printers, it is affected by internal contamination and toner dust, which contaminates the sensor section. The inconvenience was that the sensor used to detect the problem often malfunctioned.

〔発明の目的〕[Purpose of the invention]

本発明は、前記実情に鑑みてなされたもので、簡単かつ
確実にベルトの蛇行を修正することを目的とするもので
ある。The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to easily and reliably correct belt meandering.

〔発明の構成〕[Structure of the invention]

前記目的を達成するため、本発明は、ベルト蛇行の検知
に磁気センサを使用し、その検知結果に基づいて、所定
の修正動作を行なわせるための信号を発生させることに
より、ベルトの蛇行修正を行なおうとするものである。To achieve the above object, the present invention corrects belt meandering by using a magnetic sensor to detect belt meandering and generating a signal to perform a predetermined corrective action based on the detection result. That's what I'm trying to do.

すなわち、たとえばベルトの端縁屹、はぼ全長にわたっ
て磁気記録材料を配設せしめ、この磁気記録材料を交流
磁化しておき、この交流磁化のもれ磁束を所定の部位に
固設された磁気センサによって検知し、この検知信号に
所定の処理を加え、その結果に基づいてベルトの懸架さ
れている少なくとも１つのローラを動かし、ベルトのか
じ取りを行なうことにより、ベルトの蛇行を修正するも
のである。That is, for example, a magnetic recording material is disposed along the entire length of the edge of the belt, this magnetic recording material is magnetized with alternating current, and the leakage magnetic flux of this alternating current magnetization is absorbed by a magnetic sensor fixed at a predetermined location. The meandering of the belt is corrected by detecting the detection signal by applying predetermined processing to the detection signal, moving at least one roller on which the belt is suspended based on the result, and steering the belt.

〔実施例〕〔Example〕

以下、本発明実施例のベルトの蛇行修正方法について、
図面を参照しつつ説明する。　５第１図は、磁気プリン
ターに使用されるベルト状磁気記録媒体およびその蛇行
修正機能を有する駆動機構を示すもので、ベルト状磁気
記録媒体１は、駆動ロール２と、ベルトのかじ取りを行
なうべく軸移動可能なステアリングロール３と、の間で
張架され、走行せしめられており、このステアリングロ
ール３は、ドライバー回路４で駆動制御されるリバーシ
ブルモータ５によってその軸方向変位が可能なように構
成されている。また、ベルト状磁気記録媒体は、幅２５
０＋ｇ、長さ６００Ｂ、厚さ１００μｍのマイラーフィ
ルム６上に、ボリアリレートを主成分とする高分子樹脂
中に３０重量パーセントのガンマヘマタイト（γ−Ｆｅ
２０．）粒子を分散してなる磁気記録材料７をスプレー
コードンてなるもので、そしてその片端から１５ｍｇの
範囲内に１ＫＨ２の交流磁気ヘッドを接触せしめて形成
された第１および第２゛の交流磁化帯８，９が、互いに
１０闘離間して、形成されている。更Ｉこ、駆動ロール
２の近傍にはこの第１および第２の交流磁化帯の間に、
ベルト状磁気記録媒体の表面から数朋離れて、ホール素
子からなるＭｌおよび第２の磁気センサー１０．１１が
固設されており、これらのセンサーの検出出力がドライ
バー回路内で処理され、ステアリングロール３によるか
じ取り操作を実行する。Hereinafter, the belt meandering correction method according to the embodiment of the present invention will be explained.
This will be explained with reference to the drawings. 5 FIG. 1 shows a belt-shaped magnetic recording medium used in a magnetic printer and its drive mechanism having a meandering correction function. The steering roll 3 is stretched between and runs between an axially movable steering roll 3, and the steering roll 3 is configured to be able to be displaced in the axial direction by a reversible motor 5 that is driven and controlled by a driver circuit 4. has been done. Furthermore, the belt-shaped magnetic recording medium has a width of 25 mm.
0+g, length 600B, thickness 100μm Mylar film 6 was coated with 30% by weight gamma hematite (γ-Fe
20. ) The first and second AC magnetizations were formed by using a spray cordon to form a magnetic recording material 7 containing dispersed particles, and contacting a 1KH2 AC magnetic head within a range of 15 mg from one end of the magnetic recording material 7. Bands 8, 9 are formed 10 mm apart from each other. Moreover, in the vicinity of the drive roll 2, between the first and second alternating current magnetization bands,
Ml consisting of a Hall element and a second magnetic sensor 10.11 are fixedly installed several distances away from the surface of the belt-shaped magnetic recording medium, and the detection outputs of these sensors are processed in the driver circuit, and the steering roll Execute the steering operation according to step 3.

次に、上記機構を用いたベルトの蛇行修正方法について
説明する。Next, a method for correcting belt meandering using the above mechanism will be described.

ベルト状磁気記録媒体が正しい位置にあるとき、第１の
磁気センサー１０および第２の磁気センサー１１はいず
れも、第１の交流磁化帯８と第２の交流磁化帯９との間
ζこあり、従って磁束の検出はされない。When the belt-shaped magnetic recording medium is in the correct position, both the first magnetic sensor 10 and the second magnetic sensor 11 are located between the first AC magnetization zone 8 and the second AC magnetization zone 9. , therefore no magnetic flux is detected.

ベルト状磁気記録媒体１が矢印Ｆ１の方向に動き、蛇行
したとすると、第１の磁気センサー１０は第１の交流磁
化帯８のもれ磁束１２を検知し、この検知信号はドライ
バー回路４において演算処理されて、リバーシブルモー
タ５を駆動せしめ、矢印Ｆ３の方向にステアリングロー
ルを動かし、ベルト状磁気記録媒体の蛇行修正を行なう
。Assuming that the belt-shaped magnetic recording medium 1 moves in the direction of the arrow F1 and meanderes, the first magnetic sensor 10 detects the leakage magnetic flux 12 of the first AC magnetized band 8, and this detection signal is sent to the driver circuit 4. The calculation process drives the reversible motor 5 to move the steering roll in the direction of arrow F3, thereby correcting the meandering of the belt-shaped magnetic recording medium.

また、ベルト状磁気記録媒体ｌが矢印Ｆ２の方向に動き
、蛇行した場合は、同様に第２の磁気センサー１１が第
２の交流磁化帯９のもれ磁束を検知し、この検知信号が
ドライバー回路４において信号処理されて、リバーシブ
ルモータ５を駆動せしめ、矢印Ｆ４の方向にステアリン
グロールを動かし、ベルト状磁気記録媒体の蛇行修正を
行なう。Further, when the belt-shaped magnetic recording medium l moves in the direction of arrow F2 and meanderes, the second magnetic sensor 11 similarly detects the leakage magnetic flux of the second AC magnetized band 9, and this detection signal is sent to the driver. The signal is processed in the circuit 4 to drive the reversible motor 5 and move the steering roll in the direction of arrow F4, thereby correcting the meandering of the belt-shaped magnetic recording medium.

このようにして、ベルト状磁気記録媒体の蛇行は、磁気
的に検知されるため、センサー部の汚染等による誤動作
もなく、正しく修正され、１ｏｏｏ。In this way, since the meandering of the belt-shaped magnetic recording medium is detected magnetically, there is no malfunction due to contamination of the sensor section, and the meandering is corrected correctly.

回転のうち、誤動作の発生は一度もなかった。There was never a malfunction during the rotation.

ステアリングロール８のかじ取り角度（移動可能領域）
は５０以上が実用上望ましい。このかじ取りの角度を小
さくするとゆるやかに蛇行修正を行なう。Steering angle of steering roll 8 (movable area)
is practically desirable to be 50 or more. By reducing this steering angle, the meandering correction will be performed gradually.

なお、実施例においては、ベルトそのものが磁気記録材
料から構成されている場合について説明したが、そうで
ない場合は、あらかじめ、ベルトの端部に磁気記録材料
からなる帯状体をスプレーコート法等によって形成すれ
ばよい。そしてまた、このベルトの蛇行修正方法は、電
子写真複写機やプリンターにおける用途に限定されるも
のではなく、ベルト一般の蛇行修正にあたり幅広い利用
を可能とするものである。In the examples, the case where the belt itself is made of a magnetic recording material has been explained, but if this is not the case, a belt-like body made of a magnetic recording material may be formed in advance on the end of the belt by a spray coating method or the like. do it. Furthermore, this belt meandering correction method is not limited to use in electrophotographic copying machines and printers, but can be used in a wide range of applications for belt meandering correction in general.

さらに、磁気記録材料の形成方法としても、スプレーコ
ートによる塗布法の他、材料の特性に応じて蒸着法、ス
パッタ法等の方法から適宜選択すればよい。Furthermore, the method for forming the magnetic recording material may be appropriately selected from spray coating, vapor deposition, sputtering, and other methods depending on the characteristics of the material.

また、磁気センサーとしてはホール素子を用いたが、磁
気ヘッドや磁気抵抗素子等、磁気検出機能をもつ他の機
能性素子を使用しても良いことは言うまでもない。Further, although a Hall element is used as the magnetic sensor, it goes without saying that other functional elements having a magnetic detection function, such as a magnetic head or a magnetoresistive element, may be used.

〔発明の効果〕〔Effect of the invention〕

以上、説明してきたように、本発明によれば、ベルトの
蛇行を磁気的に検知することにより、簡単かつ誤動作の
少ない確実な蛇行修正を行なうことが可能となる。As described above, according to the present invention, by magnetically detecting belt meandering, it is possible to perform simple and reliable meandering correction with fewer malfunctions.

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

図は、本発明実施例のベルト蛇行修正方法を示す図であ
る。 １・・・ベルト状磁気記録材料、２・・・駆動ロール、
３・−ステアリングロール、４・・・ドライバー回路、
５・・リバーシブルモータ、６・・マイラーフィルム、
７・・磁気記録材料、８・・・第１の交流磁化帯、９・
・第２の交流磁化帯、１０・・・第１の磁気センサー、
１１・・第２の磁気センサー、１２・・もれ磁束。The figure is a diagram showing a method for correcting belt meandering according to an embodiment of the present invention. 1... Belt-shaped magnetic recording material, 2... Drive roll,
3.-steering roll, 4..driver circuit,
5. Reversible motor, 6. Mylar film,
7. Magnetic recording material, 8. First alternating current magnetization zone, 9.
・Second AC magnetization zone, 10...first magnetic sensor,
11...Second magnetic sensor, 12...Leakage magnetic flux.

Claims (1)

【特許請求の範囲】[Claims] ベルトの一部に、はぼ全長にわたって交流磁化体を形成
せしめ、この交流磁化体の存在を、所定の部位に固設さ
れた磁気センサによって検知し、この検知信号に基づい
て該ベルトの蛇行修正を行なうことを特徴とするベルト
の蛇行修正方法。An alternating current magnetized body is formed on a part of the belt over almost its entire length, the presence of this alternating current magnetized body is detected by a magnetic sensor fixed at a predetermined location, and the meandering of the belt is corrected based on this detection signal. A belt meandering correction method characterized by performing the following steps.
JP58164556A 1983-09-07 1983-09-07 Correction method for belt meandering Granted JPS6057040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58164556A JPS6057040A (en) 1983-09-07 1983-09-07 Correction method for belt meandering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58164556A JPS6057040A (en) 1983-09-07 1983-09-07 Correction method for belt meandering

Publications (2)

Publication Number Publication Date
JPS6057040A true JPS6057040A (en) 1985-04-02
JPS6158698B2 JPS6158698B2 (en) 1986-12-12

Family

ID=15795402

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58164556A Granted JPS6057040A (en) 1983-09-07 1983-09-07 Correction method for belt meandering

Country Status (1)

Country Link
JP (1) JPS6057040A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999000708A1 (en) * 1997-06-30 1999-01-07 Imation Corp. System for registration of a photoconductor belt in an electrophotographic imaging system
US5905519A (en) * 1997-06-30 1999-05-18 Imation Corp. System for registration of color separation images on a photoconductor belt
US5978003A (en) * 1997-06-30 1999-11-02 Imation Corp. Belt position detection system for belt registration in an electrophotographic imaging system
WO2001011432A1 (en) * 1999-08-10 2001-02-15 OCé PRINTING SYSTEMS GMBH Method and controlling means for regulating the position of a band-shaped image carrier in an electrographic apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999000708A1 (en) * 1997-06-30 1999-01-07 Imation Corp. System for registration of a photoconductor belt in an electrophotographic imaging system
US5896158A (en) * 1997-06-30 1999-04-20 Imation Corp. System for registration of a photoconductor belt in an electrophotographic imaging system
US5905519A (en) * 1997-06-30 1999-05-18 Imation Corp. System for registration of color separation images on a photoconductor belt
US5978003A (en) * 1997-06-30 1999-11-02 Imation Corp. Belt position detection system for belt registration in an electrophotographic imaging system
WO2001011432A1 (en) * 1999-08-10 2001-02-15 OCé PRINTING SYSTEMS GMBH Method and controlling means for regulating the position of a band-shaped image carrier in an electrographic apparatus

Also Published As

Publication number Publication date
JPS6158698B2 (en) 1986-12-12

Similar Documents

Publication Publication Date Title
US5394222A (en) Correction of misalignment in a multicolor imaging apparatus utilizing a conformable friction drive system
US8254811B2 (en) Image forming apparatus for controlling movement of a moving member
JP5274397B2 (en) Driving device and image forming apparatus
JP5247391B2 (en) Image forming apparatus
JPH02123385A (en) Image forming device
US7263314B2 (en) Electrophotographic image printing apparatus
US5321477A (en) Image forming apparatus capable of preventing the winding on the image carrier
JP2001188002A (en) Method and device for detecting small interval change between facing surfaces
JPS6057040A (en) Correction method for belt meandering
JP5335604B2 (en) Potential sensor, electrophotographic image forming apparatus including the same, and method of manufacturing potential sensor
JP3082452B2 (en) Endless belt transport device in image forming apparatus
JPH08286475A (en) Developing device
JP3175633B2 (en) Image forming device
JP4434124B2 (en) Image forming apparatus
JP4021717B2 (en) Image forming apparatus
JPH05165385A (en) Endless belt driving device
JP2005162466A (en) Belt driving device
JP2019074714A (en) Image forming apparatus
JPS6190171A (en) Detection method of latent image position on photosensitive belt
JP2920672B2 (en) Endless belt conveyor
JPH0362077A (en) Electrostatic recorder
JP2666073B2 (en) Image forming device
JP6361262B2 (en) Belt conveying apparatus and image forming apparatus
JPH04133927A (en) Endless belt carrying device
JPH06130748A (en) Image forming device