JPS61141461A - Double-face copying device - Google Patents
Double-face copying deviceInfo
- Publication number
- JPS61141461A JPS61141461A JP59264055A JP26405584A JPS61141461A JP S61141461 A JPS61141461 A JP S61141461A JP 59264055 A JP59264055 A JP 59264055A JP 26405584 A JP26405584 A JP 26405584A JP S61141461 A JPS61141461 A JP S61141461A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- exhaust air
- air
- guide plate
- route
- 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
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
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
- G03G15/231—Arrangements for copying on both sides of a recording or image-receiving material
- G03G15/232—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member
- G03G15/234—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Paper Feeding For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Counters In Electrophotography And Two-Sided Copying (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は両面複写装置、特に通紙経路内で生ずる結露
ジャムを有効に防止できるようにした両面複写装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a double-sided copying apparatus, and more particularly to a double-sided copying apparatus that can effectively prevent dew condensation jams occurring in a paper path.
一般に両面複写装置は複写部で片面に複写した用紙を方
向転換して複写部の下方に搬送してスタンカ一部ユニ収
容し、該用紙を再度送り出して上方に搬送し方向転換し
て複写部に供給し。In general, in a duplex copying device, the paper that has been copied on one side in the copying section is changed direction, conveyed to the lower part of the copying section, partially accommodated in the stunker, and the paper is sent out again, conveyed upward, and then changed direction and transported to the copying section. supply.
他面を複写するようにしたもので1片面を複写してから
他面を複写する間に用紙を2回方向転換することから、
その経路の途中で用紙を1回反転する必要がある。また
9両面複写装置には上記機能の他1片面複写後の用紙を
そのまま機外に排紙させたり、ページを揃えるために反
転排紙させたりする機能も備える必要があるため。Since the paper is designed to copy the other side, the direction of the paper is changed twice between copying one side and copying the other side.
The paper must be reversed once during its path. In addition to the above-mentioned functions, the nine-sided duplex copying apparatus also needs to have the function of directly ejecting the paper after one-sided copying from the machine, or of inverting and ejecting the paper to align the pages.
従来から排紙部に任意に切換えできる複数の通紙経路が
作られていた。この排紙部に作られた複数の通紙経路は
機内と機外との温度差等の影響を受は易く、これらの経
路をガイド板により形成すると、温度差等で結露現象が
生じ、ジャムを発生させる原因となった。従来、この結
露防止のためにガイド板に代えて針金(ロンド)状の丸
棒を用いるか、ガイド板を用いた場合はその近傍に高湿
空気を除去するファンを設けて通紙経路に風を送るか或
いはヒーターを設けてガイド板の周辺を加温するかの何
れかの手段が採られていた。Conventionally, a plurality of paper passing paths that can be arbitrarily switched to the paper discharge section have been created. The multiple paper passing paths created in this paper ejection section are easily affected by temperature differences between the inside and outside of the machine, and if these paths are formed using guide plates, condensation may occur due to temperature differences, leading to paper jams. This caused the occurrence of Conventionally, to prevent this condensation, a wire-like round bar was used instead of the guide plate, or when a guide plate was used, a fan was installed near the guide plate to remove high-humidity air to prevent wind from passing through the paper path. The methods used were to send heat to the guide plate or to provide a heater to heat the area around the guide plate.
しかしながら、丸棒で通紙ガイドを作る場合は平板でガ
イドを作る場合に比してコストアップし、丸棒が変形す
る等の欠点があり、ガイド板の近傍にファンやヒーター
を付加することはその設置スペース分が機器を大型化し
たし、コストアップの原因にもなった。However, when making a paper guide with a round bar, the cost is higher than when making a guide with a flat plate, and there are disadvantages such as deformation of the round bar, and it is not recommended to add a fan or heater near the guide plate. The installation space required increased equipment size and increased costs.
この発明は上記の点に鑑み、簡単な手段で複写装置本体
内に設けた既設の冷却ファンの排気の一部を取ってガイ
ド板の結露を防止できるようにした両面複写装置を提供
することを目的としている。In view of the above-mentioned points, it is an object of the present invention to provide a double-sided copying device that can prevent dew condensation on a guide plate by removing a part of the exhaust air from an existing cooling fan installed in the main body of the copying device by a simple means. The purpose is
上記の目的を達成するため、この発明は定着部の下流側
に設けた通紙経路に複写装置本体の側壁に設けた冷却フ
ァンの排風口に集風体を取付け、該集風体で取った排風
の一部を通紙経路に導入できるように構成したものであ
る。In order to achieve the above-mentioned object, the present invention attaches an air collector to the exhaust port of the cooling fan provided on the side wall of the main body of the copying device in the paper passing path provided on the downstream side of the fixing unit, and exhausts the air taken by the air collector. The structure is such that a part of the paper can be introduced into the paper passing path.
次に、この発明を添付図面に示す実施例に基づいて説明
する。Next, the present invention will be described based on embodiments shown in the accompanying drawings.
第1図はこの発明を適用した両面複写装置の断面図を示
している0図において、1は片面複写のための給紙部、
2は該給紙部1より一枚づつ送出された用紙に原稿台(
図示せず)上に載せられた原稿画像を複写する複写部、
3は複写部2で片面に複写された用紙を搬送ベルト4を
介して受領し、複写面を定着させる定着部である。定着
部3の下流側には定着後の用紙を直進させて機外に排出
する排紙経路aと2両面複写のため、或いは反転排紙の
ために両面複写経路5に導入する導入経路すとを切換え
る機能を持つ経路分岐装置6が設けられている。該経路
分岐装置6に連続する両面複写経路5の下流側で複写機
本体の下部には用紙を反転させる反転機構7と、これに
より反転した用紙を収容するスタッカ一部8と、該スタ
ンカ一部8に収容された用紙の再給紙機構9が設けられ
、更に、該再給紙機構9の下流側には用紙を前記複写部
2の給紙経路に戻す中継機構10を備えている。
)前記分岐装置6は上下ローラからなる上流ロ
ーラ11と下流ローラ120間に軸重4を支点として揺
動できるように設けた断面逆三角状をした可動分岐体1
3を設け、該可動分岐体13の上面及び側面のそれぞれ
に対向してガイド板15.16.17を設け、上流ロー
ラ11から下流ローラ12に直接向かう排紙経路a、該
排紙経路aより分岐して用紙を両面複写経路5に導入す
る導入経路す及び両面複写経路5に入った用紙を逆向き
搬送して下流ローラ11に導く反転排紙経路Cを形成し
ている。この排紙経路aと導入経路すの切換えは可動分
岐体13の上流ローラ側の尖端13aをソレノイド(図
示せず)の作用で揺動し、ローラ11の挟持点Pより上
下に変位することにより行われる。また。FIG. 1 shows a sectional view of a double-sided copying apparatus to which the present invention is applied. In FIG.
2 is a document platen (
(not shown) a copying unit that copies the original image placed thereon;
Reference numeral 3 denotes a fixing section that receives the paper that has been copied on one side by the copying section 2 via the conveyor belt 4 and fixes the copy side. On the downstream side of the fixing unit 3, there is a paper discharge path a for straightly advancing the paper after fixing and discharging it outside the machine, and an introduction path for introducing the paper into the double-sided copying path 5 for two-sided copying or reverse paper discharge. A route branching device 6 is provided which has a function of switching the route. At the lower part of the copying machine main body on the downstream side of the double-sided copying path 5 that continues to the path branching device 6, there is a reversing mechanism 7 for reversing the paper, a stacker portion 8 for storing the reversed sheet, and a stacker portion. A refeeding mechanism 9 for paper stored in the copying section 8 is provided, and furthermore, a relay mechanism 10 for returning the paper to the paper feeding path of the copying section 2 is provided downstream of the paper refeeding mechanism 9.
) The branching device 6 is a movable branching body 1 having an inverted triangular cross section, which is provided between an upstream roller 11 and a downstream roller 120 consisting of upper and lower rollers so as to be able to swing around an axle load 4 as a fulcrum.
3, and guide plates 15, 16, and 17 are provided facing each of the upper and side surfaces of the movable branch body 13, and a paper discharge path a that goes directly from the upstream roller 11 to the downstream roller 12, and a paper discharge path a that goes directly from the paper discharge path a. An introduction path that branches to introduce the paper into the duplex copying path 5 and a reversal paper discharge path C that conveys the paper that has entered the duplex copying path 5 in the opposite direction and guides it to the downstream rollers 11 are formed. This switching between the paper discharge path a and the introduction path S is achieved by swinging the tip 13a of the movable branch body 13 on the upstream roller side by the action of a solenoid (not shown) and displacing it up and down from the nipping point P of the rollers 11. It will be done. Also.
反転排紙経路Cへの用紙の逆向き搬送と1両面複写経路
5から反転機構7への搬送との選択は両面複写経路5の
途中に設けた正逆転ローラ18の正逆転の作動で行われ
る。この逆向き搬送時に用紙は自身の復元力が働くこと
と、可動分岐体13の下端とガイド板16との間隔を狭
くしていることから、導入経路すへ逆流することはない
ものである。Selection between conveying the paper in the reverse direction to the reversing paper ejection path C and conveying the sheet from the single-sided copying path 5 to the reversing mechanism 7 is performed by forward and reverse operation of a forward/reverse roller 18 provided in the middle of the double-sided copying path 5. . During this reverse conveyance, the paper does not flow backward into the introduction path because its own restoring force acts and the distance between the lower end of the movable branch 13 and the guide plate 16 is narrowed.
第2図において、19は複写装置本体20内の加熱防止
のための既設の冷却ファンで、該ファン19は第3図示
の如(本体20の側壁に設けた排風口21にダクト22
を介して連通している。23は排風口20から出る排風
の一部を取り出すために排風口20の仕切枠に係止した
集風体で、該集風体23は前記下流ローラ12′ 側を
カバーした外装体24の対応位置に設けた開口部25に
連通している。集風体23から外装体24の開口部25
へ送られた排風は前記可動分岐体13の上面を覆うガイ
ド板(排紙経路aのガイド板)15の上面に吹付けられ
るが。In FIG. 2, reference numeral 19 denotes an existing cooling fan for preventing heating inside the main body 20 of the copying machine, and the fan 19 is connected to a duct 22 connected to an exhaust port 21 provided on the side wall of the main body 20, as shown in FIG.
communicated through. Reference numeral 23 denotes a wind collector that is engaged with the partition frame of the exhaust outlet 20 in order to take out a part of the exhaust air coming out of the exhaust outlet 20, and the air collector 23 is located at a corresponding position on the exterior body 24 that covers the downstream roller 12' side. It communicates with an opening 25 provided in the. From the air collector 23 to the opening 25 of the exterior body 24
The exhaust air sent to is blown onto the upper surface of a guide plate (guide plate for paper discharge path a) 15 that covers the upper surface of the movable branch body 13.
該ガイド板15の上面にはかかる排風を通す透孔26を
設けている。従って、排風は該透孔26を通して可動分
岐体13を設置した空間に至る。The upper surface of the guide plate 15 is provided with a through hole 26 through which the exhaust air passes. Therefore, the exhaust air passes through the through hole 26 and reaches the space in which the movable branch body 13 is installed.
この可動分岐体13は添付図面上では必ずしも明確に表
されていないが、櫛歯状になっており。Although this movable branch body 13 is not necessarily clearly shown in the accompanying drawings, it has a comb-teeth shape.
前記排風はこの櫛歯間27を通り抜けて導入経路す及び
反転排紙経路Cのガイド板16.17まで及ぶようにな
っている。The discharged air passes through the comb teeth 27 and reaches the introduction path and the guide plate 16, 17 of the reversing sheet discharge path C.
以上説明したように、この発明に係る両面複写装置は定
着部の下流側に設けた通紙経路に複写装置本体の側壁に
設けた冷却ファンの排風口に集風体を取付け、該集風体
で取った排風の一部を通紙経路に導入できるようにした
ことを特徴としているから、複写装置の運転中はその排
風の一部が常時可動分岐体の周辺に形成した排紙経路、
導入経路及び反転排紙経路を構成するガイド板に吹付け
られることとなり、この部分での結露を生じさせること
がない、しかも、この結露防止に用いる空気は既設ファ
ンから取出したもので、従来の如く結露防止のためにガ
イド板に比してコストアップに繋がる丸棒を用いたり、
ガイド板の近傍に高湿空気を除去するファンとか、ヒー
ターのような付加装置を用いることなく結露防止ができ
るという優れた効果を奏するものである。As explained above, in the double-sided copying device according to the present invention, an air collector is attached to the exhaust port of the cooling fan provided on the side wall of the copying device main body in the paper passing path provided on the downstream side of the fixing unit, and The feature is that a part of the discharged air can be introduced into the paper passage path, so that part of the discharged air can be introduced into the paper discharge path formed around the movable branch at all times while the copying machine is operating.
The air is blown onto the guide plates that make up the inlet path and the reversing paper ejection path, so there is no condensation in these areas.Moreover, the air used to prevent condensation is extracted from the existing fan, which is different from the conventional method. In order to prevent condensation, we use a round bar that costs more than a guide plate,
This has the excellent effect of preventing dew condensation without using additional equipment such as a fan or heater for removing high-humidity air near the guide plate.
第1図はこの発明の両面複写装置の全体の断面図、第2
図は要部の拡大断面図、第3図は同外観斜視図である。FIG. 1 is a cross-sectional view of the entire double-sided copying apparatus of the present invention, and FIG.
The figure is an enlarged sectional view of the main part, and FIG. 3 is a perspective view of the same external appearance.
Claims (1)
に設けた冷却ファンの排風口に集風体を取付け、該集風
体で取った排風の一部を通紙経路に導入できるようにし
たことを特徴とする両面複写装置。An air collector is attached to the exhaust port of a cooling fan provided on the side wall of the main body of the copying machine in the paper passage provided on the downstream side of the fixing unit, so that a part of the exhaust air taken by the air collector can be introduced into the paper passage. A double-sided copying device characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59264055A JPS61141461A (en) | 1984-12-14 | 1984-12-14 | Double-face copying device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59264055A JPS61141461A (en) | 1984-12-14 | 1984-12-14 | Double-face copying device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61141461A true JPS61141461A (en) | 1986-06-28 |
JPH0468629B2 JPH0468629B2 (en) | 1992-11-02 |
Family
ID=17397912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59264055A Granted JPS61141461A (en) | 1984-12-14 | 1984-12-14 | Double-face copying device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61141461A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6242169A (en) * | 1985-08-20 | 1987-02-24 | Sanyo Electric Co Ltd | Image forming device |
JPS63115151U (en) * | 1987-01-21 | 1988-07-25 | ||
JPH0159248U (en) * | 1987-10-09 | 1989-04-13 | ||
JPH0212166A (en) * | 1988-06-30 | 1990-01-17 | Fujitsu Ltd | Structure for recording paper guide path |
JPH0219058U (en) * | 1988-07-14 | 1990-02-08 | ||
JP2009103822A (en) * | 2007-10-22 | 2009-05-14 | Fuji Xerox Co Ltd | Recording material cooling unit and image forming apparatus using the same |
JP2010271605A (en) * | 2009-05-25 | 2010-12-02 | Kyocera Mita Corp | Image forming apparatus |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5257832A (en) * | 1975-11-07 | 1977-05-12 | Hitachi Ltd | Change device for paper to be taken out |
JPS58154867A (en) * | 1982-03-10 | 1983-09-14 | Ricoh Co Ltd | Heat fixing device |
JPS5933482A (en) * | 1982-08-20 | 1984-02-23 | Canon Inc | Detecting device of recording material in fixation part |
JPS5992861A (en) * | 1982-11-16 | 1984-05-29 | Konishiroku Photo Ind Co Ltd | Both-side copying machine |
JPS59153757A (en) * | 1983-02-19 | 1984-09-01 | Fuji Xerox Co Ltd | Paper delivery device for copying machine and the like |
JPS59216159A (en) * | 1983-05-25 | 1984-12-06 | Canon Inc | Both-side copying method of one-side original |
-
1984
- 1984-12-14 JP JP59264055A patent/JPS61141461A/en active Granted
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5257832A (en) * | 1975-11-07 | 1977-05-12 | Hitachi Ltd | Change device for paper to be taken out |
JPS58154867A (en) * | 1982-03-10 | 1983-09-14 | Ricoh Co Ltd | Heat fixing device |
JPS5933482A (en) * | 1982-08-20 | 1984-02-23 | Canon Inc | Detecting device of recording material in fixation part |
JPS5992861A (en) * | 1982-11-16 | 1984-05-29 | Konishiroku Photo Ind Co Ltd | Both-side copying machine |
JPS59153757A (en) * | 1983-02-19 | 1984-09-01 | Fuji Xerox Co Ltd | Paper delivery device for copying machine and the like |
JPS59216159A (en) * | 1983-05-25 | 1984-12-06 | Canon Inc | Both-side copying method of one-side original |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6242169A (en) * | 1985-08-20 | 1987-02-24 | Sanyo Electric Co Ltd | Image forming device |
JPS63115151U (en) * | 1987-01-21 | 1988-07-25 | ||
JPH0159248U (en) * | 1987-10-09 | 1989-04-13 | ||
JPH0212166A (en) * | 1988-06-30 | 1990-01-17 | Fujitsu Ltd | Structure for recording paper guide path |
JPH0219058U (en) * | 1988-07-14 | 1990-02-08 | ||
JP2009103822A (en) * | 2007-10-22 | 2009-05-14 | Fuji Xerox Co Ltd | Recording material cooling unit and image forming apparatus using the same |
JP2010271605A (en) * | 2009-05-25 | 2010-12-02 | Kyocera Mita Corp | Image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0468629B2 (en) | 1992-11-02 |
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