JPS63292156A - Color copying machine - Google Patents

Color copying machine

Info

Publication number
JPS63292156A
JPS63292156A JP12772687A JP12772687A JPS63292156A JP S63292156 A JPS63292156 A JP S63292156A JP 12772687 A JP12772687 A JP 12772687A JP 12772687 A JP12772687 A JP 12772687A JP S63292156 A JPS63292156 A JP S63292156A
Authority
JP
Japan
Prior art keywords
belt
waste toner
cleaning device
transfer
transfer belt
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
JP12772687A
Other languages
Japanese (ja)
Inventor
Hideo Matsuda
松田 英男
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP12772687A priority Critical patent/JPS63292156A/en
Publication of JPS63292156A publication Critical patent/JPS63292156A/en
Pending legal-status Critical Current

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  • Color Electrophotography (AREA)

Abstract

PURPOSE:To reduce a floor area of a body, and to simplify a processing operation of a waste toner by arranging a photosensitive body belt so that a linear part of the photosensitive body belt has a prescribed angle against the horizontal plane, and also, forming integrally in common a waste toner carrying means of a cleaning device for photosensitive body belt and a cleaning device for transfer belt, and a storing means. CONSTITUTION:A blade 19b abuts on a transfer belt 11 only after an image on which three colors are superposed has been transferred to transfer paper, and scrapes down a waste toner. The waste toner which has been scraped down by the blade 19a and 19b is stored in a waste toner box by the rotation of a screw 19c. Accordingly, it is unnecessary to provide a waste toner carrying screw and a waste toner box on a photosensitive body belt and a cleaning device for a transfer belt, respectively, therefore, the constitution is simplified. Also, in order to install plural developing devices, the photosensitive body belt which requires a long linear part is installed so as to have a prescribed angle against the horizontal plane, that is, in the vertical direction, and the transfer belt is installed further in its lower part, therefore, the floor area of the copying machine body is extremely reduced.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 この発明は、複数のカラー現像剤を使用して多色複写を
行うカラー複写機に関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a color copying machine that performs multicolor copying using a plurality of color developers.

(ロ)従来の技術 この種の従来のカラー複写機においては、感光体ベルト
の直線部が水平になるよう感光体ベルトを設置し、各色
用現像装置をそのベルト上に横に並べて配置している(
例えば米国特許番号4,652゜115参照)。また、
感光体ベルト及び転写ベルト上に残留する不要な廃トナ
ーを除去するクリーニング装置は各ベルト毎に備えられ
、廃トナーはそれぞれ個別に搬出・収容されるようにな
っている。
(B) Prior Art In this type of conventional color copying machine, the photoreceptor belt is installed so that the straight portion of the photoreceptor belt is horizontal, and the developing devices for each color are arranged horizontally on the belt. There is (
See, eg, US Pat. No. 4,652°115). Also,
A cleaning device for removing unnecessary waste toner remaining on the photoreceptor belt and the transfer belt is provided for each belt, and the waste toner is carried out and stored individually.

(ハ)発明が解決しようとする問題点 しかしながら1.このような従来のカラー複写機におい
ては次のような解決すべき問題点がある。
(c) Problems to be solved by the invention However, 1. Such conventional color copying machines have the following problems to be solved.

(1)カラー複写機本体の横方向の寸法が大きくなり、
また、設置床面積も大きくなる。
(1) The lateral dimension of the color copying machine body becomes larger;
In addition, the installation floor area becomes larger.

(2)転写紙の搬送距離が長くなり、搬送の確実性およ
び信頼性が低下する。
(2) The conveyance distance of the transfer paper becomes long, and the certainty and reliability of conveyance decreases.

(3)各ベルトにクリーニング装置が設けられているた
め、廃トナーの搬送機構及び廃トナーを収容する廃トナ
ーボックスがそれぞれに必要となる。
(3) Since each belt is provided with a cleaning device, each belt requires a waste toner conveying mechanism and a waste toner box for storing the waste toner.

(4)廃トナー収容量を報知する報知手段が廃トナーボ
ックスのそれぞれに必要となる。
(4) Notifying means for notifying the amount of waste toner contained is required for each waste toner box.

(5)各廃トナーボックスのトナーが同時に充満するこ
とはまれで、いずれかが充満したときに複写機本体の動
作を停止させて廃トナーボックスを交換せねばならず、
作業能率を低下させる。
(5) It is rare for each waste toner box to be filled with toner at the same time, and when one of them becomes full, the operation of the copying machine must be stopped and the waste toner box replaced;
Decrease work efficiency.

この発明は、このような事情を考慮してなされたもので
、本体の床面積が小さく、廃トナーの処理操作が簡単な
カラー複写機を提供するものである。
The present invention has been made in consideration of the above-mentioned circumstances, and it is an object of the present invention to provide a color copying machine whose main body has a small floor area and whose waste toner processing operation is simple.

(ニ)問題点を解決するための手段 この発明は、画像光をうけて静電潜像を形成する感光体
ベルトと、感光体ベルトに各種のカラー現像剤を供給し
て現像する複数の現像装置と、現像された感光体ベルト
上の画像を転写紙に転写する転写ベルトと、感光体ベル
トと転写ベルトに各々設置され各ベルトに残留する不要
な廃トナーを除去して搬出するクリーニング装置とを備
えたカラー複写機において、感光体ベルトの直線部が水
平面に対して所定角度を有するように感光体ベルトを配
置し、かつ、感光体ベルト用クリーニング装置と転写ベ
ルト用クリーニング装置の廃トナー搬出手段および収容
手段を共通一体化したことを特徴とするカラー複写機で
ある。
(d) Means for Solving Problems This invention provides a photoreceptor belt that receives image light to form an electrostatic latent image, and a plurality of developing devices that supply various color developers to the photoreceptor belt for development. a transfer belt that transfers the developed image on the photoreceptor belt to transfer paper; and a cleaning device that is installed on the photoreceptor belt and the transfer belt and removes unnecessary waste toner remaining on each belt and carries it out. In a color copying machine equipped with a photoconductor belt, the photoconductor belt is arranged so that the straight part of the photoconductor belt has a predetermined angle with respect to the horizontal plane, and waste toner is removed from the photoconductor belt cleaning device and the transfer belt cleaning device. This is a color copying machine characterized in that means and storage means are commonly integrated.

(ホ)作用 感光体ベルトの直線部が水平面に対して所定角度を有す
るので、各現像装置は垂直方向に重なり合って配置され
る。従って、カラー複写機本体の床面積が縮小される。
(E) Function Since the straight portion of the photoreceptor belt has a predetermined angle with respect to the horizontal plane, the developing devices are arranged vertically overlapping each other. Therefore, the floor space of the color copying machine main body is reduced.

更に、廃トナーの搬送手段および収容手段が共通一体化
されているため、廃トナーの収容量の報知や廃トナーの
処理をまとめて行うことができるので、複写機の構成が
単純化すると共に、作業能率が向上する。
Furthermore, since the waste toner conveyance means and the storage means are commonly integrated, notification of the amount of waste toner stored and waste toner processing can be performed all at once, which simplifies the configuration of the copying machine. Work efficiency improves.

(へ)実施例 第1図はこの発明の一実施例を示す構成説明図である。(f) Example FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention.

同図において1は複写機本体、2,3゜4は原稿(図示
しない)を走査して得られた画像光を結像レンズ5へ導
くミラー、6は色フイルタ−,9は矢印六方向に移動し
ミラー7.8からの画像光によって静電潜像が形成され
る感光体ベルト、IOaはイエローの現像剤を供給する
現像装置、10bはマゼンタの現像剤を供給する現像装
置、10cはシアンの現像剤を供給する現像装置、It
は感光体ベルト9の下部に接触するよう設けられ矢印B
方向に移動して感光体ベルト9上で現像された画像が一
旦転写される転写ベルト、12a、12bはそれぞれ転
写紙を収容するカセット、12c及び12dはカセット
12a及び12bから転写紙を搬出する搬出ローラ、1
3は転写ベルト11の上に形成される画像の形成状態に
タイミングを合わせて転写紙を送給するレジストローラ
、14は転写ベルト11から転写紙へ画像を転写する転
写チャージャ、15は転写ベルト11から転写紙を分離
する分離チャージャ、16は転写紙を搬送する搬送ベル
ト、17は転写紙を加熱定着する定着ローラ、18は転
写紙を外部へ搬出する搬出ローラである。19はクリー
ニング装置であり、感光体ベルト9に常時当接して廃ト
ナーをかき落とすブレード19aと、必要に応じて転写
ベルト11に当接して転写ベルトll上の廃トナーをか
き落とすブレード19bと、ブレード19aおよびブレ
ード19bがかき落とした廃トナーを廃トナーボックス
(図示せず)に搬送する廃トナー搬送用スクリュー19
cを内蔵している。さらに、20はクリーニング装置に
よって廃トナーが除去された感光体ベルト9の不要電荷
を除去する除電ランプ、21は感光体ベルト9を一様に
帯電させるメインチャージャである。なお、この実施例
においては、感光体ベルト9の直線部が水平面に対して
約75℃傾斜するように感光体ベルト9が設置されてい
る。また、フィルター6はブルー、グリーンおよびレッ
ドの3色に自動的に切換設定されるようにしている。
In the figure, 1 is the main body of the copying machine, 2, 3.4 is a mirror that guides the image light obtained by scanning a document (not shown) to the imaging lens 5, 6 is a color filter, and 9 is shown in the six directions of arrows. A photoreceptor belt moves and forms an electrostatic latent image using image light from mirror 7.8, IOa is a developing device that supplies yellow developer, 10b is a developing device that supplies magenta developer, and 10c is cyan. A developing device that supplies developer of It
is provided so as to be in contact with the lower part of the photoreceptor belt 9, and arrow B
12a and 12b are cassettes that accommodate the transfer paper, respectively. 12c and 12d are transport belts that carry out the transfer paper from the cassettes 12a and 12b. Laura, 1
3 is a registration roller that feeds the transfer paper in accordance with the state of the image formed on the transfer belt 11; 14 is a transfer charger that transfers the image from the transfer belt 11 to the transfer paper; 15 is the transfer belt 11; 16 is a conveyance belt that conveys the transfer paper, 17 is a fixing roller that heats and fixes the transfer paper, and 18 is a carry-out roller that carries out the transfer paper to the outside. A cleaning device 19 includes a blade 19a that constantly contacts the photoreceptor belt 9 to scrape off waste toner, and a blade 19b that contacts the transfer belt 11 as needed to scrape off the waste toner on the transfer belt 11. A waste toner conveying screw 19 that conveys the waste toner scraped off by the blades 19a and 19b to a waste toner box (not shown).
It has a built-in c. Further, the reference numeral 20 designates a neutralizing lamp that removes unnecessary charges from the photoreceptor belt 9 from which waste toner has been removed by the cleaning device, and the reference numeral 21 designates a main charger that uniformly charges the photoreceptor belt 9. In this embodiment, the photoreceptor belt 9 is installed such that the straight portion of the photoreceptor belt 9 is inclined at about 75 degrees with respect to the horizontal plane. Further, the filter 6 is configured to automatically switch between three colors: blue, green, and red.

このような構成において、まずフィルター6がブルーに
設定され、原稿からの画像光がミラー2゜3.4、結合
レンズ5、フィルター6、ミラー7゜8を介して感光体
ベルト9の上に結像されると、それによって感光体ベル
ト9上に静電潜像が形成される。その静電潜像は、現像
装置10a (イエロー)によって現像され、その現像
された画像は転写ベルトll上に転写される。そして感
光体ベルト9は、その廃トナーがブレード19aによっ
てかき落とされた後、除電ランプ20によって除電され
、さらにメインチャージャ21によって再び一様に帯電
される。次に、フィルター6はグリーンに設定され、同
様にして同じ原稿画像が再び感光体ベルト9の上に静電
潜像として形成される。
In this configuration, the filter 6 is first set to blue, and the image light from the original is focused onto the photoreceptor belt 9 via the mirror 2°3.4, the coupling lens 5, the filter 6, and the mirror 7°8. When imaged, an electrostatic latent image is thereby formed on the photoreceptor belt 9. The electrostatic latent image is developed by a developing device 10a (yellow), and the developed image is transferred onto transfer belt ll. After the waste toner on the photoreceptor belt 9 is scraped off by the blade 19a, the charge is removed by the charge removal lamp 20, and the charge is uniformly charged again by the main charger 21. Next, the filter 6 is set to green, and the same document image is again formed as an electrostatic latent image on the photoreceptor belt 9 in the same manner.

その静電潜像は現像装置lObによってマゼンタに現像
され、その現像された画像は前回と同様に転写ベルト1
1の上に転写される。そして、感光体ベルト9は再び廃
トナーがブレード19&によってかき落とされ、除電ラ
ンプ20によって除電され、メインチャージャー21に
よって一様に帯電される。次に、感光体ベルト9はフィ
ルター6がレッドに設定された画像光によって静電潜像
が形成され、現像装置10cによってシアンに現像され
る。そして、その現像された画像は転写ベルト11上に
転写される。このようにして転写ベルトll上には3色
の重ね合わされた画像が形成される。この時点で転写紙
がカセット12aまたは12bから搬出され、レジスト
ローラ13を介して転写ベルト11の下部に当接するよ
う供給され、転写ベルトll上に形成されている3色の
画像が転写チャージャ14によって転写紙上に転写され
る。その後、転写紙は転写ベルトIIから分離チャージ
ャ15によって分離され、搬送ベルト16によって定着
ローラ17へ搬送される。転写紙は定着ローラ17によ
って加熱、定着されて、搬出ローラ18により外部へ搬
出される。このようにして3色からなるカラー複写か行
われる。なお、ブレード19bは、3色の重ね合わせら
れた画像が転写紙に転写された後のみに転写ベルトll
に当接し、廃トナーをかき落とす。ブレード19a及び
19bによってかき落とされた廃トナーはスクリュー1
9cの回転によって廃トナーボックスに収容される。従
って、従来のように廃トナー搬送用スクリューと廃トナ
ーボックスとを感光体ベルト及び転写ベルト用クリーニ
ング装置のそれぞれに設ける必要がなく構成が簡単にな
る。その上、一般に廃トナーボックスに設けられている
廃トナー収容量報知装置も1つで済むとともに、廃トナ
ーボックスが1個まとめられているのでその取扱いが非
常に簡単となる。また、複数の現像装置を設置するため
に長い直線部を必要とする感光体ベルトを、水平面に対
して所定角度を有するように、つまり縦方向に設置し転
写ベルトを更にその下部に設置したので複写機本体の床
面積が非常に縮小される。
The electrostatic latent image is developed into magenta by the developing device lOb, and the developed image is transferred to the transfer belt 1 as before.
1. Then, the waste toner is scraped off from the photoreceptor belt 9 again by the blade 19&, the charge is removed by the charge removal lamp 20, and the charge is uniformly charged by the main charger 21. Next, an electrostatic latent image is formed on the photoreceptor belt 9 by the image light with the filter 6 set to red, and is developed into cyan by the developing device 10c. The developed image is then transferred onto the transfer belt 11. In this way, a three-color superimposed image is formed on the transfer belt ll. At this point, the transfer paper is carried out from the cassette 12a or 12b and is supplied via the registration roller 13 so as to contact the lower part of the transfer belt 11, and the three-color image formed on the transfer belt 11 is transferred by the transfer charger 14. Transferred onto transfer paper. Thereafter, the transfer paper is separated from the transfer belt II by a separation charger 15 and is transported to a fixing roller 17 by a transport belt 16. The transfer paper is heated and fixed by a fixing roller 17, and then transported to the outside by a transport roller 18. In this way, color copying consisting of three colors is performed. Note that the blade 19b is moved to the transfer belt ll only after the three-color superimposed image is transferred to the transfer paper.
to scrape off waste toner. The waste toner scraped off by the blades 19a and 19b is removed by the screw 1.
By rotation of 9c, the waste toner is stored in the waste toner box. Therefore, it is not necessary to provide a waste toner conveying screw and a waste toner box for each of the photoreceptor belt and the transfer belt cleaning device, as in the prior art, and the configuration is simplified. Furthermore, only one waste toner storage amount informing device, which is generally provided in the waste toner box, is required, and since the waste toner boxes are combined into one, handling becomes very simple. In addition, the photoreceptor belt, which requires a long straight section in order to install multiple developing devices, was installed at a predetermined angle to the horizontal plane, that is, vertically, and the transfer belt was installed further below. The floor space of the copying machine body is greatly reduced.

(ト)発明の効果 この発明によれば、複写機本体の設置占有面積が縮小さ
れ、紙搬送機への長さが短縮されて、紙送りおよび確実
性が向上する。更に、廃トナーの搬送手段および収容手
段が共通一体にまとめられているため、構成が簡略化さ
れるとともに、メンテナンスが容易となる。
(g) Effects of the Invention According to the present invention, the installation area of the copying machine main body is reduced, the length to the paper conveying machine is shortened, and paper feeding and reliability are improved. Furthermore, since the waste toner conveyance means and storage means are integrated into a common unit, the configuration is simplified and maintenance is facilitated.

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

第1図はこの発明の一実施例を示す構成説明図である。 l・・・・・・カラー複写機本体、 2.3.4,7.8・・団・ミラー、 5・・・・・・結像レンズ、 6・・・・・・フィルタ、 9・・・・・・感光体ベルト、 10a、lOb、10c・・川・現像装置、2・・・・
・・転写ベルト、 12a、12b・・・・・iレー、 I9・・・・・・クリーニング装置、 19a、19b・・・・・・ブレード、19c・・・・
・・廃トナー搬送スクリュー。
FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention. l... Color copying machine main body, 2.3.4, 7.8... Group/mirror, 5... Imaging lens, 6... Filter, 9... ...Photoreceptor belt, 10a, lOb, 10c... River/Developing device, 2...
...Transfer belt, 12a, 12b...I-ray, I9...Cleaning device, 19a, 19b...Blade, 19c...
...Waste toner conveyance screw.

Claims (1)

【特許請求の範囲】 1、画像光をうけて静電潜像を形成する感光体ベルトと
、感光体ベルトに各種のカラー現像剤を供給して現像す
る複数の現像装置と、現像された感光体ベルト上の画像
を転写紙に転写する転写ベルトと、感光体ベルトと転写
ベルトに各々設置され各ベルトに残留する不要な廃トナ
ーを除去して搬出するクリーニング装置とを備えたカラ
ー複写機において、 感光体ベルトの直線部が水平面に対して所定角度を有す
るように感光体ベルトを配置し、かつ、感光体ベルト用
クリーニング装置と転写ベルト用クリーニング装置の廃
トナー搬出手段および収容手段を共通一体化したことを
特徴とするカラー複写機。
[Claims] 1. A photoreceptor belt that receives image light to form an electrostatic latent image, a plurality of developing devices that supply various color developers to the photoreceptor belt for development, and a developed photoreceptor belt. In a color copying machine equipped with a transfer belt that transfers an image on a body belt onto transfer paper, and a cleaning device that is installed on a photoreceptor belt and a transfer belt and removes unnecessary waste toner remaining on each belt and carries it out. , the photoreceptor belt is arranged so that the straight portion of the photoreceptor belt has a predetermined angle with respect to the horizontal plane, and the waste toner conveying means and storage means of the photoreceptor belt cleaning device and the transfer belt cleaning device are commonly integrated. A color copying machine characterized by
JP12772687A 1987-05-25 1987-05-25 Color copying machine Pending JPS63292156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12772687A JPS63292156A (en) 1987-05-25 1987-05-25 Color copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12772687A JPS63292156A (en) 1987-05-25 1987-05-25 Color copying machine

Publications (1)

Publication Number Publication Date
JPS63292156A true JPS63292156A (en) 1988-11-29

Family

ID=14967181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12772687A Pending JPS63292156A (en) 1987-05-25 1987-05-25 Color copying machine

Country Status (1)

Country Link
JP (1) JPS63292156A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04318875A (en) * 1991-04-18 1992-11-10 Hitachi Ltd Color image electrophotographic device
JPH0511565A (en) * 1991-07-08 1993-01-22 Sharp Corp Image forming device
US5270769A (en) * 1991-02-21 1993-12-14 Matsushita Electric Industrial Co., Ltd. Electrophotographic apparatus for formation of color image on intermediate transfer device
WO2001025857A1 (en) * 1999-10-06 2001-04-12 Aetas Technology Corporation Electrophotographic color printer arrangement
KR100477675B1 (en) * 2002-10-28 2005-03-21 삼성전자주식회사 Liquid type electrophotographic image forming apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5270769A (en) * 1991-02-21 1993-12-14 Matsushita Electric Industrial Co., Ltd. Electrophotographic apparatus for formation of color image on intermediate transfer device
JPH04318875A (en) * 1991-04-18 1992-11-10 Hitachi Ltd Color image electrophotographic device
JPH0511565A (en) * 1991-07-08 1993-01-22 Sharp Corp Image forming device
WO2001025857A1 (en) * 1999-10-06 2001-04-12 Aetas Technology Corporation Electrophotographic color printer arrangement
KR100477675B1 (en) * 2002-10-28 2005-03-21 삼성전자주식회사 Liquid type electrophotographic image forming apparatus

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