JPS63143126A - Circulating type automatic document feeder - Google Patents

Abstract

PURPOSE:To feed a document in various sizes to be surely returned to a document storage part, by feeding the document to be returned to the document storage part in accordance with a kind of the document through plural return feed paths and providing a movable conveying path, which feeds the document being able to change so as to be alternatively connected with the plural return feed paths, in these paths. CONSTITUTION:A rear end guide 31, which can be longitudinally moved fitting to the size of a document, is provided in a document storage part 6, and the document is arranged being fitted to its size by a guide wall 31a in the front surface of the rear end guide 31. A movable conveying path 36 is inserted to a document accepting port 35 of the rear end guide 31, and for its advance to a certain distance, the document, passing through the movable conveying path 36 by a rear directed guide wall 33b, is fed to be returned to the storage part 6 from a feed out port 34 passing through the accepting port 35. If the rear end guide 31 is further advanced, the movable conveying path 36 is separated from the guide wall 33b reaching a return feed guide 38, and the document is fed to be returned to the storage part 6 from the return feed guide 38 through any of the feed out ports 41, 42, 43 provided in a storage part bottom plate 8 being fitted to each size. Accordingly, the document can be fed to be returned being fitted to its various sizes.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は循環式自動原稿送り装置に関するものであり、
主として複写機において所定枚の原稿を積層した順番通
りに一枚一枚プリントすることを自動的に繰返し行い、
仕分は作業なしに前記積層単位づつのプリント物を必要
部数得るのに利用される。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a circulating automatic document feeder,
Mainly in a copying machine, a predetermined number of original documents are automatically and repeatedly printed one by one in the order in which they are stacked.
Sorting is used to obtain the required number of prints for each layered unit without any work.

（従来の技術） この種の循環式自動原稿送り装置は、通常原稿を積層状
態に収納して一枚づつ給紙する給紙手段付きの原稿収納
部と、原稿収納部から送出されると原稿をプラテン部ま
で移送する給送路と、プラテン部の原稿を原稿収納部に
゛返送する返送路とを有し、特公昭５６−４０３３８号
公報で知られている。この公知のものは原稿収納部に積
層収納した複数枚の原稿を一枚一枚給送してプリントに
供した後原稿収納部に返送するのに、原稿収納部の一定
後端位置にまで後端を送り付けるようになっている。(Prior Art) This type of circulating automatic document feeder normally has a document storage section with a paper feed means that stores documents in a stack and feeds them one by one, and a document storage section that stores documents in a stacked state and feeds them one by one. It has a feeding path for transporting the document to the platen section, and a return path for returning the document in the platen section to the document storage section, and is known from Japanese Patent Publication No. 56-40338. This known method feeds multiple sheets of originals stacked and stored in a document storage section one by one, prints them, and then returns them to the document storage section. It is designed to send the end.

（発明が解決しようとする問題点） しかし前記公知のものでは、種々のサイズの原稿に利用
しようとすると、プリント後原稿収納部に返送した原稿
は後端位置が一定になるものの先端位置はサイズごとに
異なって所定の給紙位置に到達されなかったりし、特定
のサイズの原稿しか安定給送することができない。この
ため利用できる原稿のサイズが限られ、原稿サイズにＪ
ＩＳ規格のＡ列、Ｂ列またその他のミリサイズ、インチ
サイズ、同じ原稿の縦通しサイズと横通しサイズ等種々
用いられる現状からして非常に不便である。(Problem to be Solved by the Invention) However, with the above-mentioned known method, when trying to use it for originals of various sizes, the trailing edge position of the original returned to the original storage unit after printing is constant, but the leading edge position is the same size. Depending on the document, the paper may not reach the predetermined feeding position, and only originals of a specific size can be stably fed. For this reason, the size of the original that can be used is limited.
This is very inconvenient in view of the current situation in which various types of documents are used, such as columns A and B of the IS standard, other millimeter sizes, inch sizes, vertical thread sizes and horizontal thread sizes for the same document.

（問題点を解決するための手段） 本発明は前記のような問題点を解決するために、原稿を
積層状態に収納して一枚づつ給紙する給紙手段付きの原
稿収納部と、原稿収納部から送出される原稿をプラテン
部まで移送するとともにさらにプラテン部から原稿収納
部に返送する循環搬送路とを有した循環式自動原稿送り
装置において、循環搬送路の原稿返送部に、原稿の種類
に応じた原稿収納部への複数の返送路と、それら各返送
路に択一的に連なるように変向でき連なった返送路に搬
送する返送原稿を送込む可動搬送路とを設けたことを特
徴とするものである。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a document storage section with a paper feeding means for storing documents in a stacked state and feeding them one by one; In a circulating automatic document feeder that has a circulation conveyance path that transports a document sent out from a storage section to a platen section and returns it from the platen section to the document storage section, a document is sent to the document return section of the circulation conveyance path. A plurality of return paths to the document storage section according to the type are provided, and a movable conveyance path that can be changed in direction so as to be selectively connected to each of the return paths and sends the return document to the continuous return path. It is characterized by:

（作　用） 原稿収納部にはその給紙手段が作用する所定給紙位置に
達するようにして原稿を収納すると、原稿をそのサイズ
にかかわりなく給紙手段によって一枚づつ給紙すること
ができる。(Function) When documents are stored in the document storage section in such a way that they reach a predetermined paper feeding position where the paper feeding means acts, the originals can be fed one by one by the paper feeding means regardless of their size. .

給紙された原稿は循環搬送路によってプラテン部まで移
送してプリントに供した後原稿収納部に返送するので再
度の給紙が可能となる。The fed document is transported to the platen section by the circulating conveyance path, used for printing, and then returned to the document storage section, making it possible to feed the document again.

この再度の給紙のための原稿の返送を、原稿のサイズに
よって循環搬送路の原稿返送部に設けられている可動搬
送路を、その後方に設けられている複数の返送路の原稿
のサイズに応じた返送路に連なるように変向することに
より、原稿原稿を引っ掛かりなどなくそのサイズに応じ
た返送路に導いて行うので、原稿をそのサイズ如何にか
かわりなく所定の給紙位置まで送付けることができ、再
給紙を確実に行うことができる。The document is returned for re-feeding by changing the movable conveyance path provided in the document return section of the circulating conveyance path depending on the size of the document, and the multiple return paths provided behind it depending on the size of the document. By changing the direction so as to be connected to the return path according to the size, the document is guided to the return path according to its size without getting caught, so the document can be sent to the predetermined paper feeding position regardless of its size. This makes it possible to refeed the paper reliably.

複数の返送路による選択返送は可動搬送路の変向により
その何れかに原稿を導いて行うから原稿の流れがスムー
ズで循環搬送路の返送側終端に必要最小限の長さに形成
した返送路によって詰りなどなく安定して行うことがで
きる。Selective return using multiple return paths is performed by guiding the document to one of them by changing the direction of the movable conveyance path, so the flow of the document is smooth. This allows stable operation without clogging.

（実施例） 第１図から第４図に示す本発明の一実施例について説明
すれば、第１図に示すように複写機本体ｌの上面の露光
プラテン２を覆うカバー型のケース３に、原稿４を積層
収納して給紙手段５により一枚づつ送出す原稿収納部６
と、原稿収納部６から送出される原稿４を露光プラテン
２上まで給送するとともに、さらに露光プラテン２上か
ら原稿収納部６に返送する循環搬送路７とを設けたもの
である。(Embodiment) To explain one embodiment of the present invention shown in FIGS. 1 to 4, as shown in FIG. A document storage section 6 that stores documents 4 in a stack and sends them out one by one by a paper feeding means 5.
A circulating conveyance path 7 is provided for feeding the original 4 sent out from the original storage part 6 onto the exposure platen 2 and further transporting the original 4 from above the exposure platen 2 to the original storage part 6.

原稿収納部６はケース３の上面に第１図、第４図に示す
ような凹陥部として形成してあり、所定枚の原稿４を積
層して収納することができる。給紙手段５は原稿収納部
６の底板８の先端部にほぼ面一状態に下方より臨ませら
れた送出しベルト９と、送出しベルト９の上方に原稿送
出し隙間を残して臨む前捌き片１１とを持っていて、積
層原稿４をその下層部のものを除き前捌き片１１によっ
て位置規正および送出し制限しながら送出しベルト９に
よって下層のものから順次送出す。これにより積層原稿
４が一度に多数枚送出されるのを制限し、次での捌きを
楽にする。The document storage section 6 is formed as a concave portion as shown in FIGS. 1 and 4 on the upper surface of the case 3, and can store a predetermined number of documents 4 in a stacked manner. The paper feeding means 5 includes a delivery belt 9 that faces from below almost flush with the tip of the bottom plate 8 of the document storage section 6, and a pre-separator that faces the top of the delivery belt 9 leaving a gap for sending out the original. The stacked originals 4 are removed from the lower layers, and are sequentially sent out from the lower layer by a delivery belt 9 while the pre-separation piece 11 regulates the position and limits the feeding. This restricts the stacked originals 4 from being sent out in large numbers at once, making it easier to sort them next time.

給紙手段５はまた送出しベルト９の直後に位置する給送
ローラ１２とこの給送ローラ１２の上部に圧接する捌き
パッド１３とを持っており、送出しベルト９によって前
記前捌きを受けた数枚の原稿４が送出されてくると、上
層の原稿４は捌きパッド１３によって進行を妨げ、最下
層の原稿４のみ給送ローラ１２によって給紙できるよう
にする。The paper feeding means 5 also has a feeding roller 12 located immediately after the feeding belt 9 and a sorting pad 13 that is in pressure contact with the upper part of the feeding roller 12, and the paper that has been pre-sorted by the feeding belt 9 is When several originals 4 are sent out, the upper originals 4 are prevented from advancing by the handling pad 13, and only the lowermost original 4 can be fed by the feeding roller 12.

前記前捌き片１１および捌きパッド１３は基部を軸１４
で枢支されたレバーＬに装着し、レバーＬは軸１４まわ
りの自重による下動習性と図示しない圧接バネの付勢に
よって側きパッド゛１３を給送ローラ１２に圧接させて
安定し、前捌き片１１を、送出しベルト９上の所定高さ
位置に臨ませている。また、前捌き片１１は本体に固定
してもよい。The pre-picking piece 11 and the picking pad 13 have their bases centered on an axis 14.
The lever L is stabilized by pressing the side pad 13 against the feeding roller 12 due to its downward movement due to its own weight around the shaft 14 and the biasing force of a pressure contact spring (not shown). The separating piece 11 is made to face the delivery belt 9 at a predetermined height position. Further, the pre-slicing piece 11 may be fixed to the main body.

循環搬送路７は給紙手段５から給紙される原稿４を露光
プラテン２上に導く給送側の湾曲搬送路１５と、露光プ
ラテン２との間に形成される直状搬送路１６と、露光プ
ラテン２上の原稿４を原稿収納部６にその後端部側から
返送する返送側の湾曲搬送路１７とが連続したものとし
ている。給送側の湾曲搬送路１５にはその始端部に給送
ローラ１２により少し速くした取出しローラ１８が、ま
た後端部にピンチローラ対１９がそれぞれ設けられてい
る。取出しローラ１８は給紙手段５から湾曲搬送路１５
に給送されてくる原稿４を受取った後給紙手段５からそ
の原稿４を取出し湾曲搬送路１５に送り進める。このと
き給送ローラ１２は内装する一方向クラッチ部で空転し
て従転する。ピンチローラ対１９は取出しローラ１８か
ら原稿４を送付けられる時点では一定時間停止させられ
、原稿４がスキューしていたとしてもその先端両側がピ
ンチローラ対１９の圧接境界部に圧接するのを待って駆
動されることで、原稿４の先端縁が送り方向に直角とな
る正しい姿勢で露光プラテン２上の直状搬送路１６に送
出す。The circulation conveyance path 7 includes a curved conveyance path 15 on the feeding side that guides the document 4 fed from the paper feeding means 5 onto the exposure platen 2, a straight conveyance path 16 formed between the exposure platen 2, A return-side curved conveyance path 17 for returning the document 4 on the exposure platen 2 to the document storage section 6 from the rear end side is continuous. The curved conveyance path 15 on the feeding side is provided with a take-out roller 18 made slightly faster than the feeding roller 12 at its starting end, and a pair of pinch rollers 19 at its rear end. The take-out roller 18 moves from the paper feeding means 5 to the curved conveyance path 15.
After receiving the original 4 fed to the paper feed means 5, the original 4 is taken out from the paper feeding means 5 and sent to the curved conveyance path 15. At this time, the feeding roller 12 idles and rotates by an internal one-way clutch section. The pinch roller pair 19 is stopped for a certain period of time when the document 4 is sent from the take-out roller 18, and even if the document 4 is skewed, it waits for both sides of its leading edge to come into pressure contact with the pressure contact boundary of the pinch roller pair 19. As a result, the leading edge of the document 4 is sent to the straight conveyance path 16 on the exposure platen 2 in a correct posture such that the leading edge thereof is perpendicular to the feed direction.

直状搬送路１６は露光プラテン２とその上面に圧接する
ように設けられた搬送ベルト２０とで形成してあり、搬
送ベルト２０は駆動ローラ２１および従動ローラ２２に
よって原稿収納部６の底板８の下に張設し、途中をガイ
ドローラ２３によって露光プラテン２に圧接させである
。これによって搬送ベルト２０は湾曲搬送路１５から供
給されて（る原稿４を露光プラテン２上に受入れていき
、また露光プラテン２上に受入れた原稿４を返送側の湾
曲搬送路１７に送出す。The straight conveyance path 16 is formed by the exposure platen 2 and a conveyance belt 20 that is provided in pressure contact with the upper surface of the exposure platen 2. It is stretched downward, and is brought into pressure contact with the exposure platen 2 by a guide roller 23 in the middle. As a result, the conveyor belt 20 receives the original document 4 supplied from the curved conveyance path 15 onto the exposure platen 2, and sends the document 4 received onto the exposure platen 2 to the curved conveyance path 17 on the return side.

直状搬送路１６の露光プラテン２を返送方向側に外れた
位置に原稿スケール２４が設けられている。原稿スケー
ル２４は後端側が軸２５によって複写機本体１に枢支さ
れ、図示しないソレノイド等の駆動手段で前縁２４ａが
露光プラテン２よりも低くなる通常位置と、前縁２４ａ
が露・光プラテン２よりも高（なるストッパー位置とに
姿銭制御されるようになっている。この原稿スケール２
４は通常位置にされると、露光プラテン２から送出され
る原稿４をすくい上げて返送側の湾曲搬送路１７に導く
が、ストッパー位置では露光プラテン２上に送られてく
る原稿４の先端を前縁２４ａで受止め供給される原稿４
を露光プラテン３上の所定プリント位置に位置決めする
。A document scale 24 is provided at a position away from the exposure platen 2 on the straight conveyance path 16 in the return direction. The rear end of the document scale 24 is pivotally supported on the copying machine main body 1 by a shaft 25, and the front edge 24a is moved between a normal position where the front edge 24a is lower than the exposure platen 2 and a front edge 24a by a driving means such as a solenoid (not shown).
The document scale 2 is controlled so that the stopper position is higher than the exposure/light platen 2.
4 scoops up the document 4 sent from the exposure platen 2 and guides it to the curved conveyance path 17 on the return side when it is in the normal position, but in the stopper position, the leading edge of the document 4 sent onto the exposure platen 2 is forwarded. Document 4 received and fed by edge 24a
is positioned at a predetermined printing position on the exposure platen 3.

この位置決めはプリント方式が露光光学系でスキャンを
行うものやスキャンなく全面同時露光を行うものに必要
であるが、原稿４を搬送することでスキャンを行う原稿
スキャン方式のものには不要である。本実施例において
は、光学系スキャン、原稿スキャン両複写方式に対応す
るものとする。This positioning is necessary for printing methods that scan with an exposure optical system or for simultaneous exposure of the entire surface without scanning, but is unnecessary for a document scanning method that scans by transporting the original 4. In this embodiment, it is assumed that both optical scanning and original scanning copying methods are supported.

返送側の湾曲搬送路１７は途中に大径の搬送ローラ２６
を有し、この搬送ローラ２６の側周面の上部と下部とに
従動ローラ２７．２８を圧接させ、露光プラテン３上か
ら湾曲搬送路１７に送込まれてくる原稿４を搬送ローラ
２６の側周面に沿って湾曲させながら搬送し原稿収納部
へその後端部側から返送する。The curved conveyance path 17 on the return side has a large diameter conveyance roller 26 in the middle.
The driven rollers 27 and 28 are brought into pressure contact with the upper and lower sides of the side circumferential surface of the transport roller 26, and the document 4 sent from above the exposure platen 3 to the curved transport path 17 is moved to the side of the transport roller 26. The document is conveyed while being curved along the circumferential surface and returned to the document storage section from the rear end side.

原稿収納部６の後端部には積層収納する原稿４の後端を
ガイドして原稿４を前記前捌き片１１に送付ける後端ガ
イド３１を設けである。後端ガイド３１は原稿収納部６
内で原稿４のサイズに応じて前後に移動できるようにし
てあり、前面の少し傾斜したガイド壁３１ａによって原
稿４の後端を案内して原稿４の先端が前捌き片１１に当
接する所定給紙位置に原稿４を揃える。A rear end guide 31 is provided at the rear end of the document storage section 6 to guide the rear ends of the documents 4 to be stored in a stack and to send the documents 4 to the front separation piece 11. The rear edge guide 31 is connected to the document storage section 6
The rear end of the original 4 is guided by a slightly inclined guide wall 31a at the front, and the leading edge of the original 4 comes into contact with the front handling piece 11. Align document 4 to the paper position.

後端ガイド３１は第１図、第２図、第４図から第８図に
示すように、原稿収納部６からケース３上へ突出する操
作ツマミ３２を有する断面山形をなした合成樹脂製のカ
バー３３よりなり、カバー３３の後向き壁３３ａと内部
に固設した金属製のガイド壁３３ｂとによって後向きに
大きく開き操作ツマミ３２の前面付は根部の排出口３４
に向は狭くなる先細りの原稿受入れ口（原稿返送部の返
送路）３５を形成しである。As shown in FIGS. 1, 2, 4 to 8, the rear end guide 31 is made of synthetic resin and has a chevron-shaped cross section and has an operation knob 32 that protrudes from the document storage section 6 onto the case 3. It is made up of a cover 33, which opens wide rearward due to the rear facing wall 33a of the cover 33 and the metal guide wall 33b fixed inside.
A tapered document receiving opening (return path of the document return section) 35 is formed, which is narrower in the opposite direction.

原稿受入れ口３５は後端ガイド３１の位装置調節ととも
に同体移動され、そのどの位置でも湾曲搬送路１７から
の原稿４を原稿受入れ口３５に送込めるように、先ず湾
曲搬送路１７の搬送ローラ２６より後方の部分を首振り
可能な可動搬送路３６としである。これによって後端ガ
イド３１が第５図の最後退位置Ａ０から第６図の第１段
前身位置Ａ１までの位置変化では、可動搬送路３６が原
稿受入れ口３５内に図の如く入込むことで、湾曲搬送路
１７から送出す原稿４を原稿受入れ口３５に確実に送込
むことができる。この可動搬送路３６が原稿受入れ口３
５内に入り込んだ状態で、つまり可動搬送路３６から原
稿受入れ口３５に返送原稿を移せる連通状態を保って、
後端ガイド３１だけが位置調整可能なことは、位置調節
される後端ガイド３１と位置調節されない原稿返送経路
との間の互いの嵌合い部が出入りして通路を伸縮してい
ることを意味し、後端ガイド３１の位置調節に応じて可
動搬送路３６が後方に退避したりする必要がなく退避ス
ペースを省略することができる。The document receiving port 35 is moved together with the rear end guide 31 when the device is adjusted, and the document receiving port 35 is first moved by the transport roller 26 of the curved transport path 17 so that the document 4 from the curved transport path 17 can be fed into the document receiving port 35 at any position. The more rearward portion is a movable conveyance path 36 that can be swung. As a result, when the rear end guide 31 changes its position from the most retracted position A0 in FIG. 5 to the first stage front position A1 in FIG. , the document 4 sent from the curved conveyance path 17 can be reliably sent to the document receiving port 35. This movable conveyance path 36 is the document receiving opening 3.
5, that is, maintain a communication state in which the returned original can be transferred from the movable conveyance path 36 to the original receiving opening 35,
The fact that only the trailing edge guide 31 can be adjusted in position means that the fitting portion between the trailing edge guide 31 whose position is adjusted and the document return path whose position is not adjusted moves in and out to expand and contract the path. However, there is no need for the movable conveyance path 36 to retreat rearward in accordance with the position adjustment of the rear end guide 31, and a retreat space can be omitted.

後端ガイド３１の第１段前進位置Ａ、からさらに前方に
移動されるのに対しては、可動搬送路３６が原稿受入れ
口３５から外れて第７図等のように連なる補助返送路（
原稿返送路の返送部）３７を原稿収納部６の底板８の下
に返送ガイド３８を設けて形成しである。補助返送路３
７はそれに接続状態になる可動搬送路３６から原稿４を
送込まれるが、後端ガイド３１のさらなる各前進位置に
応じて原稿４を送出す送出し口４１．４２．４３が底板
８に設けである。各送出し口４１．４２．４３には図に
示すように後端部が軸４４で枢支され各送出し口４１．
４２．４３を表裏面一状態に嵌り′込んで閉じる蓋４５
．４６．４７をばね（図示しない）等による閉じ習性を
持って設けてあり、後端ガイド３１の前進位置に対応し
たものが第７図や第８図のように開かれ、補助返送路３
７を送られてくる原稿４をすくい上げてその開いた送出
し口４１や４３等に送出していき、各前進位置の原稿受
入れ目３５に確実に送込めるようにしである。While the rear end guide 31 is moved further forward from the first stage forward position A, the movable conveyance path 36 is removed from the document receiving opening 35 and is moved to the auxiliary return path (as shown in FIG. 7).
A return section 37 of the document return path is formed by providing a return guide 38 under the bottom plate 8 of the document storage section 6. Auxiliary return route 3
The document 4 is sent from the movable conveyance path 36 connected to the document 7, and the bottom plate 8 is provided with delivery ports 41, 42, and 43 for sending the document 4 in accordance with each further forward position of the rear end guide 31. It is. Each outlet 41, 42, 43 has a rear end pivotally supported by a shaft 44 as shown in the figure.
42. A lid 45 that fits and closes 43 with the front and back sides aligned.
．． 46 and 47 are provided with a closing behavior using a spring (not shown) or the like, and the one corresponding to the forward position of the rear end guide 31 is opened as shown in FIGS. 7 and 8, and the auxiliary return path 3
The document 4 sent from the document 7 is scooped up and sent to the open delivery ports 41, 43, etc., so that the document 4 can be surely sent to the document receiving opening 35 at each forward position.

原稿サイズが小さくなるほど後端ガイド３５は前進させ
られ、補助返送路３７での搬送、距離が長くなる。この
長い距離の搬送をも確実に行うために補助搬送路３６の
途中には適宜搬送ローラ対４８等を設ける。The smaller the document size is, the more the trailing edge guide 35 is moved forward, and the longer the conveyance distance in the auxiliary return path 37 becomes. In order to reliably carry out this long distance conveyance, a pair of conveyance rollers 48 and the like are provided as appropriate along the auxiliary conveyance path 36.

ここで前記後端ガイド３１の移動位置に応じた可動搬送
路３６の向き調節の構造につき説明すると、可動搬送路
３６は第２図に示すように表裏のガイド板３６ａ　、３
６ｂにより形成していて、裏ガイド板３６ｂは搬送ロー
ラ２６の側周面に対しほぼ接線方向前方に延びるように
設けてあり、表ガイド仮３６ａは裏ガイド板３６ｂとそ
れに連続する搬送ローラ２６の側周面一部範囲とに一定
の搬送路隙間を形成して被さるように設けである。表裏
ガイドｖｉ３６ａ　、　３６ｂは一体に組合せ、表ガイ
ド板３６ａの両側に設けた腕３６ｃの端部を搬送ローラ
２６の回転中心軸２６ａによって枢支し、可動搬送路３
６は搬送ローラ２６の側周面から接線方向に延びる搬送
路をなすとともに、搬送ローラ２６の中心軸線を中心と
した首振りによって前記接線方向搬送路の状態を変える
ことなく向きが変えられる。Here, the structure for adjusting the direction of the movable conveyance path 36 according to the moving position of the rear end guide 31 will be explained. As shown in FIG.
6b, the back guide plate 36b is provided so as to extend substantially tangentially forward with respect to the side peripheral surface of the conveyance roller 26, and the front temporary guide plate 36a is formed by the back guide plate 36b and the conveyance roller 26 that is continuous therewith. It is provided so as to form a certain conveyance path gap and cover a part of the side peripheral surface. The front and back guides vi36a and 36b are combined together, and the ends of arms 36c provided on both sides of the front guide plate 36a are pivotally supported by the rotation center shaft 26a of the conveyance roller 26, and the movable conveyance path 3
6 forms a conveyance path extending tangentially from the side peripheral surface of the conveyance roller 26, and the direction can be changed by swinging about the central axis of the conveyance roller 26 without changing the state of the tangential conveyance path.

可動搬送路３６の搬送ローラ２６との接線部の位置に前
記従動ローラ２７を設けて表ガイド板３６ａに保持して
あり、可動搬送路３６の前記首振り動作に従動ローラ２
７が同動して常時可動搬送路３６の搬送ローラ２６の側
周面との接線位置に位置し、湾曲搬送路１７の搬送ロー
ラ２６まわりを搬送してきた原稿４を常時スムーズに可
動搬送路３６に移行させることができる。The driven roller 27 is provided at a tangent to the conveyance roller 26 of the movable conveyance path 36 and is held by the front guide plate 36a, and the driven roller 27 is provided in the movable conveyance path 36 at a tangent to the conveyance roller 26 and is held by the front guide plate 36a.
7 moves simultaneously and is located at a tangent position to the side peripheral surface of the conveying roller 26 of the constantly movable conveying path 36, so that the document 4 that has been conveyed around the conveying roller 26 of the curved conveying path 17 is always smoothly transferred to the movable conveying path 36. can be moved to.

表ガイド板３６ａの側縁にはまた上向きの腕３６ｄを設
けてそれに受動ローラ５１を軸支してあり、後端ガイド
３１の移動位置によってカバー３３の後向き壁３３ａが
受動ローラ５１を第１図、第２図に示すようにすくい上
げて可動搬送路３６を第５図や第６図のように原稿受入
れ目３５内に人込ませ、また後向き壁３３ａが受動ロー
ラ５１から第７図や第８図に示すように外れて、可動搬
送路３６の持上げを解除し可動搬送路３６が自重で下動
して補助返送路３７の返送ガイド３８上に載って安定し
、補助返送路３７との接続状態になる。An upwardly directed arm 36d is also provided on the side edge of the front guide plate 36a, on which a driven roller 51 is pivotally supported. , as shown in FIG. 2, and move the movable conveyance path 36 into the document receiving opening 35 as shown in FIGS. As shown in the figure, it comes off, releases the lift of the movable conveyance path 36, and the movable conveyance path 36 moves down by its own weight, rests on the return guide 38 of the auxiliary return path 37, becomes stable, and connects with the auxiliary return path 37. become a state.

後端ガイド３１の排出口３４には排出ローラ対５２を設
けてあり、受入れ口３５に送込まれてくる原稿４を排出
ローラ対５２によってさらに積極的に原稿収納部６に排
出し、後端が原稿収納部６に確実に落込むまで排出する
。A pair of discharge rollers 52 is provided at the discharge port 34 of the trailing edge guide 31, and the pair of discharge rollers 52 more actively discharges the document 4 sent into the receiving port 35 into the document storage section 6, and the document 4 sent to the receiving port 35 is further positively discharged into the document storage section 6. The document is ejected until it falls securely into the document storage section 6.

次に後端ガイド３１の位置に応じた前記送出し口４１．
４２．４３の各蓋４５．４６．４７の開閉機構について
説明する。Next, the delivery port 41 according to the position of the rear end guide 31.
The opening/closing mechanism of each lid 45, 46, and 47 of 42, 43 will be explained.

各蓋４５．４６．４７は第３図等に示すようにそれらを
枢支する軸４４にフレーム６１を固着してそれに受動ロ
ーラ６２を軸支しである。一方後端ガイド３１の側壁３
１ｃの下縁に前記各受動ローラ６２と対向するカム６３
を形成し、蓋４５．４６．４７の後端ガイド３１の位置
に応じたものの受動ローラ６２にカム６３の下方への突
出縁６３ａによって押下され、それに係る蓋が開かれる
。As shown in FIG. 3, each lid 45, 46, 47 has a frame 61 fixed to a shaft 44 that pivotally supports the lids, and a driven roller 62 is pivotally supported on the frame 61. On the other hand, the side wall 3 of the rear end guide 31
A cam 63 facing each of the driven rollers 62 at the lower edge of 1c.
The lid 45, 46, 47 is pressed down by the downward protruding edge 63a of the cam 63 against the driven roller 62 corresponding to the position of the rear end guide 31, and the corresponding lid is opened.

ここで後端ガイド３１は各送出し口４１．４２．４３に
対し原稿受入れ口３５が第８図に示すようにに示す大き
な前後幅りをもって対向し、各送出し口４１．４２．４
３に対し前後に前記幅りの範囲で移動しても送出されて
くる原稿４を受取ることができる。これによって、後端
ガイド３１と可動搬送路３６との前記関係と相俟って、
原稿の少しのサイズの違いにも対応でき、ＪＩＳ規格Ａ
列、Ｂ列や、その他のミリサイズ、インチサイズさらに
それらの横通しサイズ、縦通しサイズの全てに利用でき
る。Here, in the rear end guide 31, the document receiving port 35 faces each of the sending ports 41, 42, 43 with a large front and back width as shown in FIG.
Even if the original document 4 is moved forward or backward relative to the original document 3 within the above-mentioned width range, it is possible to receive the sent original document 4. Due to this, together with the above-mentioned relationship between the rear end guide 31 and the movable conveyance path 36,
Can accommodate slight differences in document size and meets JIS standard A
It can be used for rows, B rows, other millimeter sizes, inch sizes, and all of their horizontal and vertical sizes.

なお後端ガイド３１は原稿収納部６の内面の案内を受け
て安定移動できるが、不用意な動きを防止するために適
当な抵抗を与えておくのが望ましい。後端ガイド３１の
排出ローラ対５２の駆動軸は原稿収納部６の側壁に設け
たスリット７０からケース３内に貫通させて駆動源に連
結してあり、この貫通部を後端ガイド３１の案内に利用
することもできる。後端ガイド３１の側壁３１ｃもスリ
ット７０からケース３内に臨ませ、受動ローラ６２とケ
ース３内で当接し合うようにしである。Although the rear end guide 31 can move stably by being guided by the inner surface of the document storage section 6, it is desirable to provide an appropriate resistance to prevent accidental movement. The drive shaft of the ejection roller pair 52 of the rear end guide 31 passes through the case 3 through a slit 70 provided in the side wall of the document storage section 6 and is connected to a drive source. It can also be used for. The side wall 31c of the rear end guide 31 also faces into the case 3 through the slit 70, so as to come into contact with the driven roller 62 inside the case 3.

しかしこれらの具体的構造は任意である。However, these specific structures are arbitrary.

ケース３は複写機本体１の上面−側に第４図に示すよう
にヒンジ連結部６４によって着脱可能に連結され、ヒン
ジ連結部を中心に起伏して露光プラテン２上を開閉でき
る。これによって通常の原稿カバーと同様に取扱ってプ
リントすることもできる。The case 3 is removably connected to the top side of the copying machine body 1 by a hinge connection part 64 as shown in FIG. 4, and can be raised and lowered around the hinge connection part to open and close the exposure platen 2. This allows you to handle and print in the same way as a normal document cover.

原稿収納部６の先端側−側には反対側の原稿ガイド壁６
６に離接可能な可動ガイド６７が設けられている。An opposite document guide wall 6 is provided on the leading edge side of the document storage section 6.
A movable guide 67 that can be moved toward and away from 6 is provided.

またケース３の先端側上部には原稿排出用のトレー７１
が斜めに設置されていて、前記給送側の湾曲搬送路１５
から上方へ分枝した原稿排出路７２を通じてトレー７１
上に排出できるようにしである。この排出は搬送ベルト
２０、ピンチローラ対１９を逆転させ、排出ローラ７３
を駆動することにより行われ、通路切換爪７４が第１図
実線の通常位置から仮想線の排出位置に切換えられる。In addition, a tray 71 for discharging originals is provided at the top of the front end of the case 3.
is installed diagonally, and the curved conveyance path 15 on the feeding side
The tray 71 is passed through the document ejection path 72 branching upward from the
It is so that it can be drained upwards. For this ejection, the conveyor belt 20 and the pinch roller pair 19 are reversed, and the ejection roller 73
The passage switching claw 74 is switched from the normal position shown by the solid line in FIG. 1 to the ejection position shown by the imaginary line in FIG.

湾曲搬送路１５のピンチローラ対１９の直前にはその下
部に分枝開口する給排ロア５も設けられている。一方、
返送側の湾曲搬送路１７の搬送ローラ２６と従動ローラ
２８との送出し部直後に側方に分枝する給排出ロアロが
設けられている。Immediately before the pair of pinch rollers 19 on the curved conveyance path 15, there is also provided a supply/discharge lower 5 having a branch opening at the lower part thereof. on the other hand,
Immediately after the sending portion of the return side curved conveyance path 17 between the conveyance roller 26 and the driven roller 28, a supply/discharge lower roller is provided which branches laterally.

以下使用状態について説明する。先ず原稿収納部６の受
入口および可動ガイド６７を最大サイズ位置に移動させ
ておき、それから原稿４を原稿収納部６に所定枚積層収
納するのが望ましい。これは原稿４の積層収納するのに
ガイド３１や６７が邪魔にならないためである。The usage status will be explained below. It is preferable to first move the receiving opening and movable guide 67 of the document storage section 6 to the maximum size position, and then store a predetermined number of documents 4 in the document storage section 6 in a stacked manner. This is because the guides 31 and 67 do not get in the way when the documents 4 are stacked and stored.

原稿４を積層収納するのに、原稿４群の後端部を手に持
ち原稿４群の先端部を給紙手段５の前捌き片１１に当接
するよう前方へ差込むような形で行うと、原稿４群をほ
ぼ所定の給紙位置に位置させておける。この際送出しベ
ルト９をフリーな状態にしておくと、原稿４群の前記差
込みを従転によりスムーズに行わせ得る。To stack and store the originals 4, hold the rear end of the 4th group of originals in your hand and insert the front end of the 4th group of originals forward so that it comes into contact with the front separation piece 11 of the paper feeding means 5. , the four groups of originals can be positioned at approximately predetermined paper feeding positions. At this time, if the delivery belt 9 is left in a free state, the insertion of the four groups of documents can be smoothly performed by rotation.

次に後端ガイド３１を各サイズに対した表示位置にセッ
トすると、そのガイド壁３１ｂで原稿４群の後端を押し
て原稿４群の先端が前捌き片１１にきっちりと当接した
所定給紙位置に難なくセットされる。また可動ガイド６
７を摺動させると、原稿４群をその一側縁から押動して
他側縁をガイド壁６６に押し付け、原稿４群を給紙とは
直角な方向にも揃わせることができる。Next, when the trailing edge guide 31 is set at the display position for each size, the trailing edge of the fourth group of documents is pushed by the guide wall 31b, and the leading edge of the fourth group of documents is tightly abutted against the front separation piece 11 to feed the specified paper. It is easily set in position. In addition, the movable guide 6
When 7 is slid, the 4 groups of originals are pushed from one side edge and the other side edge is pressed against the guide wall 66, and the 4 groups of originals can also be aligned in a direction perpendicular to the paper feed.

第１図は最大サイズの原稿４を積層収納した場合を示し
ている。この状態で例えばプリント部数を３としてプリ
ントスイッチが操作されたとすると、先ず送出しベルト
９、給送ローラ１２、取出しローラ１８が駆動される。FIG. 1 shows a case where the largest size originals 4 are stacked and stored. In this state, for example, if the number of copies to be printed is set to 3 and the print switch is operated, first the delivery belt 9, the feeding roller 12, and the take-out roller 18 are driven.

これによって前記積層収納した原稿４群の最下層の原稿
４が送出される。送出された原稿４が取出しローラ１８
に達したとき、以後取出しローラ１８によって湾曲搬送
路１５を搬送されていく、この湾曲搬送路１５の取出し
ローラ１８の直後とピンチローラ対１９の直前とに原稿
検出スイッチ６日、６９が設けられ、原稿４の位置およ
びスイッチ６８．６９間を原稿４が通過することによる
搬送速度の検出とが行われ、線間電圧の変動や駆動モー
タの公差、駆動歯車の摩耗、原稿４の滑り、原稿４の引
きづり等による原稿４の給送速度の一切の変動が直接測
定され、それに見合った適正なタイミング調整が行われ
る。As a result, the lowest original 4 of the group of 4 stacked originals is sent out. The sent document 4 is taken out by the take-out roller 18
When the document reaches this point, the document is subsequently conveyed along the curved conveyance path 15 by the take-out roller 18. A document detection switch 69 is provided on the curved conveyance path 15 immediately after the take-out roller 18 and immediately before the pinch roller pair 19. , the position of the document 4 and the conveyance speed of the document 4 as it passes between the switches 68 and 69 are detected. Any fluctuations in the feeding speed of the document 4 due to drag of the document 4, etc. are directly measured, and appropriate timing adjustments are made accordingly.

湾曲搬送路１５を搬送される原稿４は停止状態にあるピ
ンチローラ対１９に当接してスキューを矯正された後、
ピンチローラ対１９および搬送ベルト２０の駆動によっ
て露光プラテン２上の直状搬送路１６での搬送状態とさ
れる。またこのとき原稿スケール２４は上動されていて
それに搬送されてくる原稿４が当接する。これによって
露光プラテン２上の所定プリント位置に原稿４が停止さ
せられる。また原稿４の先端が原稿スケース２４に整合
することで原稿４のスキューが矯正される。The document 4 conveyed through the curved conveyance path 15 comes into contact with the pinch roller pair 19 in a stopped state, and after the skew is corrected,
By driving the pinch roller pair 19 and the conveyor belt 20, the image is conveyed on the straight conveyance path 16 above the exposure platen 2. Further, at this time, the document scale 24 is being moved upward, and the document 4 being conveyed comes into contact with it. As a result, the original 4 is stopped at a predetermined print position on the exposure platen 2. Further, by aligning the leading edge of the original 4 with the original skew 24, the skew of the original 4 is corrected.

原稿４が原稿スケール２４に整合状態で当接する時点で
搬送ベルト２０の駆動が停止され、その状態で光学系ス
キャン方式の露光によるプリントが行われる。プリント
終了前か終了後に原稿スケール２４が下動されておりま
たされたことを条件に搬送ベルト２０の駆動を再開する
とともに返送側の湾曲搬送路１７を働かせる。これと同
時に後端ガイド３１の排出ローラ対５２も駆動しておく
。また、原稿スキャン方式のプリントの場合は、この箇
所が単なる搬送路となるため、原稿スケール２４は常時
下動されている。When the document 4 contacts the document scale 24 in an aligned state, the driving of the conveyor belt 20 is stopped, and in this state, printing is performed by exposure using an optical scanning method. On the condition that the document scale 24 has been lowered before or after printing is completed, the drive of the conveyor belt 20 is restarted and the curved conveyance path 17 on the return side is activated. At the same time, the discharge roller pair 52 of the rear end guide 31 is also driven. In addition, in the case of printing by the document scanning method, since this portion serves as a mere conveyance path, the document scale 24 is constantly moved downward.

搬送ベルト２０の駆動によって露光プラテン２上のプリ
ント後の原稿４は湾曲搬送路１７から原稿受入れ口３５
を通じ排出ローラ対５２へ搬送され、排出ローラ対５２
によって排出口３４から原稿収納部６に排出される。排
出ローラ対５２は段付きのものとされて排出する原稿４
に搬送方向の縦波みを作らせ、直進性を与える。By driving the conveyor belt 20, the printed document 4 on the exposure platen 2 is transferred from the curved conveyance path 17 to the document receiving opening 35.
is conveyed to the discharge roller pair 52 through the discharge roller pair 52.
The document is discharged from the discharge port 34 to the document storage section 6. The pair of ejection rollers 52 are stepped to eject the document 4.
Creates longitudinal waves in the transport direction, giving straightness.

このとき原稿収納部６の給紙手段５の直前に設けたウレ
タン等の弾性送り翼７７ａを持った補助送りホイール７
７が駆動されており、原稿収納部６に先に積層収納され
ている原稿４群の上に返送により排出されてくる原稿４
に弾性送り作用を及ぼすから、前記直進性と相俟ち前捌
き片１１に当接する所定給紙位置まで確実に送付ける先
に積層収納した原稿４群の上には、その積層単位の原稿
４とその上に返送され、排出されてくる原稿４とを区分
けする公知の原稿分離爪（図示せず）が載っている。At this time, an auxiliary feed wheel 7 having an elastic feed blade 77a made of urethane or the like is provided immediately before the paper feeding means 5 of the document storage section 6.
7 is being driven, and the original 4 is returned and discharged on top of the 4 groups of originals that have been stacked and stored in the original storage section 6.
Since an elastic feeding action is exerted on the document 4, the document 4 of the stacked unit will be reliably fed to the predetermined paper feeding position where it comes into contact with the front separation piece 11. A known document separation claw (not shown) is placed on top of the document separation claw for separating the document 4 that is sent back and the document 4 that is ejected.

一方、露光プラテン２上の原稿４のプリントが終了する
適当な時間前か、プリント終了後給紙手段５が再び作動
されて原稿収納部６から最下層となっている原稿４を一
枚送出す。以後前回と同じようにその原稿４をプリント
に供した後再度原稿収納部６に返送する。On the other hand, either before the printing of the original 4 on the exposure platen 2 is finished, or after the printing is finished, the paper feeding means 5 is operated again to send out the lowest original 4 from the original storage part 6. . Thereafter, the original 4 is printed in the same way as the previous time and then returned to the original storage unit 6 again.

こうして先の積層単位の原稿４の最終のものが送出され
たとき前記原稿分離爪は支えられるものがなくなって原
稿収納部６から一旦落ち込み、最終の原稿４がプリント
され原稿収納部６に返送された時点で反転させられてプ
リント終了後再び原稿収納部６に順次返送積層された単
位の原稿４上に載せられる。In this way, when the last of the originals 4 in the previous stacked unit is sent out, the original separating claw has nothing to support it and falls down from the original storage unit 6, and the final original 4 is printed and returned to the original storage unit 6. At that point, the originals are turned over, and after printing is completed, they are sequentially returned to the original storage unit 6 and placed on top of the stacked unit originals 4.

このような原稿分離爪の動作で積層収納した単位の原稿
４がプリントされ終ったことをその都度検出することが
できる。By such operation of the document separating claw, it is possible to detect each time that the printing of the stacked units of document 4 has been completed.

プリントは設定部数分連続して行われる。最終回のプリ
ントの際、露光プラテン２の原稿４のプリントが終了し
たとき、搬送ベルト２０および送出しローラ１８、ピン
チローラ対１９を逆転させるとともに、排出ローラ７３
を駆動し・、また通路切換爪７４を第１図仮想線位置に
切換える。６これによりプリントを終えた原稿４は、直
状搬送路１６から給送側の湾曲搬送路１５へと逆送され
、排出ローラ７３によって原稿排出用のトレー７１へ排
出される。このようにして最終回のプリントを行った原
稿４はトレー７１に排出されるので、プリント終了後原
稿収納部６は空になる。Printing is performed continuously for the set number of copies. During the final printing, when printing of the original 4 on the exposure platen 2 is completed, the conveyor belt 20, the feed roller 18, and the pinch roller pair 19 are reversed, and the eject roller 73
and switch the passage switching pawl 74 to the position shown by the imaginary line in FIG. 6 The original 4 that has been printed is transported back from the straight transport path 16 to the curved transport path 15 on the feeding side, and is ejected by the ejection roller 73 to the original ejection tray 71. The original 4 that has been printed for the last time in this manner is discharged onto the tray 71, so that the original storage section 6 becomes empty after printing is completed.

このため原稿収納部６は先のプリント終了と同時に即決
の原稿４の積層収納に利用でき、次のプリントをスピー
ディに開始することができる。なお、最終プリント原稿
４をそのまま原稿収納部６へ排出してもよい。Therefore, the document storage section 6 can be used to stack and store documents 4 to be processed immediately at the same time as the previous printing is completed, and the next printing can be started quickly. Note that the final print document 4 may be ejected to the document storage section 6 as it is.

先の原稿４群がトレー７１に排出されたまま次に積層収
納した原稿４群のプリントを行い、プリント終了後トレ
ー７１に続いて排出され、トレー７１では先の原稿４群
と後の原稿４群とが重なるような使い方もされる。While the previous 4 groups of originals are ejected to the tray 71, the next 4 groups of originals stacked and stored are printed, and after printing is completed, they are ejected to the tray 71, and in the tray 71, the previous 4 groups of originals and the next 4 groups of originals are printed. It is also used in a way that overlaps with groups.

このような場合、トレー７１を先の原稿４群を受入れる
ときと、次の原稿４群を受入れるときで原稿４の排出方
向と直角な方向に２位置間でシフトさせて受入れ位置を
異なるようにすると、先の原稿４群と次の原稿４群とが
位置ズレした状態で受入れられる。これによってトレー
７１上に排出される先の原稿４群と後の原稿４群とに位
置ズレができ一目で区分けすることができる。したがっ
て２以上の原稿４群につき次々プリントするのに便利で
あるし、先の原稿４群のプリントを行っていた操作者が
持ち場を離れていて、戻ったとき他の人が次のプリント
を開始あるいは他の人のプリント後の原稿４が自分のプ
リントした原稿４群の上に排出されているような場合に
便利である。In such a case, the tray 71 is shifted between two positions in a direction perpendicular to the direction in which the originals 4 are ejected so that the receiving positions are different when receiving the previous four groups of originals and when receiving the next four groups of originals. Then, the previous four groups of originals and the next four groups of originals are received with their positions shifted. As a result, the first four groups of documents discharged onto the tray 71 and the second four groups of documents are misaligned and can be distinguished at a glance. Therefore, it is convenient for printing 4 groups of 2 or more originals one after another, and when the operator who was printing the previous 4 groups of originals is away from his/her station and returns, another person starts printing the next one. Alternatively, this is convenient when the document 4 printed by another person is discharged on top of the group of documents 4 printed by the user.

さらに第１図の循環式自動原稿送り装置は、第９図に示
すように他の原稿自動給紙ユニー／　）Ａや原稿反転ユ
ニソ）Ｒと連結して用いることもできる。この場合につ
いて説明すると、自動給紙ユニットＡはトレー１０１上
に積層収納した原稿４は、給送ローラ１０２ａ、１０２
ｂ、逆転捌きローラ１０４によって最上層のものから送
出される。この送出された原稿４は給排ロアロを通じ返
送側の湾曲搬送路１７に進入し逆転状態にある搬送ロー
ラ２６と従動ローラ２８とによって直状搬送路１６に逆
送されていく。直状搬送路１６では搬送ベルト２０が逆
転されており、前記逆送されてくる原稿４を露光プラテ
ン２上に引き入れていく。Further, the circulation type automatic document feeder shown in FIG. 1 can be used in conjunction with other automatic document feed units (A) and document reversing units (R) as shown in FIG. To explain this case, the automatic paper feeding unit A stores the documents 4 stacked and stored on the tray 101 through the feeding rollers 102a and 102.
b. The uppermost layer is sent out by the reversing sorting roller 104. The sent document 4 enters the curved conveyance path 17 on the return side through the supply/discharge lower roller and is conveyed back to the straight conveyance path 16 by the conveyance roller 26 and the driven roller 28 which are in a reversed state. In the straight conveyance path 16, the conveyance belt 20 is reversely rotated, and the document 4, which is being conveyed in the opposite direction, is drawn onto the exposure platen 2.

この引き入れが完了したとき搬送ベルト２０は駆動を正
方向に切換えられ前記引き入れた原稿４を原稿スケール
２４に当接させて所定プリント位置に位置決めする。When this drawing is completed, the driving of the conveyor belt 20 is switched in the forward direction, and the drawn original 4 is brought into contact with the original scale 24 and positioned at a predetermined printing position.

プリント終了後の原稿４はトレー７１に排出してもよい
が、原稿収納部６に順次返送して積層していくと、トレ
ー１０１上から上出し方式によって順次プリントに供さ
れた原稿４が原稿収納部６にトレー１０１上とは上下逆
の順序に積層されるものの、今度は下出し方式で給紙さ
れることになり原稿４群のプリント順序が変ることはな
い。After printing, the originals 4 may be ejected to the tray 71, but if they are sequentially returned to the original storage unit 6 and stacked, the originals 4 that have been sequentially printed from the top of the tray 101 will be stacked. Although the originals are stacked in the storage unit 6 in an upside-down order from that on the tray 101, the originals are now fed in a bottom-up manner, so the printing order of the four groups of originals does not change.

つまりトレー１０１を用いると原稿収納部６で給紙され
る場合のプリント順位と逆に積層されている原稿４群を
そのままセットし、所定の順位でプリントすることがで
きるとともに、その所定の順序でのプリントを原稿収納
部６を用いて必要回数自動的に行わせることができる。In other words, by using the tray 101, it is possible to set the four groups of originals that are stacked in the opposite printing order when they are fed in the original storage section 6, and print them in a predetermined order. can be automatically printed a necessary number of times using the document storage section 6.

また原稿収納部６から給紙した原稿４をトレー１０１上
に排出させることも可能である。この場合原稿４の原稿
面が下向きになって順次積層されることになり、原稿収
納部６やトレー７１で原稿面が上向きでＭｔＭされるの
と異なり、原稿４の積層順位を逆にすることができる。It is also possible to discharge the original 4 fed from the original storage section 6 onto the tray 101. In this case, the originals 4 are stacked one after another with the original side facing downward, and unlike the case where the original side is stacked in MtM with the original side facing upward in the original storage unit 6 or the tray 71, the stacking order of the original 4 is reversed. I can do it.

トレー１０１からの給紙や露光プラテン２上からトレー
１０１や原稿収納部６への排出かを選択するのに、原稿
４の通紙経路の切換えが必要であり、このため返送側の
湾曲搬送路１７と給排ロアロとの分枝部にも通路切換え
爪１０３が設けられている。In order to select whether to feed the paper from the tray 101 or eject it from the exposure platen 2 to the tray 101 or the document storage unit 6, it is necessary to switch the paper passage path of the document 4. A passage switching pawl 103 is also provided at a branching portion between the supply and discharge lower and lower parts.

原稿反転ユニ７）Ｒは給送側の湾曲搬送路１５の給排ロ
ア５を通じて直状搬送路１６と原稿４の授受を行う。露
光プラテン２上でプリントを終えた原稿４が搬送ベルト
２０の逆転によって給排ロア５を通じ原稿反転ユニット
Ｒ内の反転搬送路１１１にその出口１１２側から送込ま
れる。反転搬送路１１１は出口１１２からその下の入口
１１３に至るループをなしていて、送込まれた原稿４を
そのループに沿って反転させた後入口１１３から送出し
、給排ロア５を通じ直状搬送路１６に表裏が反転した状
態で送込む、このとき搬送ベルト２０は正方向に駆動さ
れて前記送込まれる反転後の原稿４を原稿スケール２４
に向は搬送し所定露光位置に位置決めすることができる
。The document reversing unit 7)R transfers the document 4 to and from the straight conveyance path 16 through the supply/discharge lower portion 5 of the curved conveyance path 15 on the feeding side. The original 4 that has been printed on the exposure platen 2 is fed into the reversing transport path 111 in the original reversing unit R from its exit 112 side through the supply/discharge lower 5 by the reverse rotation of the transport belt 20. The reversing conveyance path 111 forms a loop from an exit 112 to an inlet 113 below it, and after reversing the fed original 4 along the loop, it is sent out from the inlet 113 and then straight through the supply/discharge lower 5. The original 4 is fed into the conveying path 16 with its front and back sides reversed. At this time, the conveying belt 20 is driven in the forward direction, and the reversed original 4 is placed on the original scale 24.
It can be transported in both directions and positioned at a predetermined exposure position.

これによって、原稿反転ユニットＲを利用すると、露光
プラテン２上で一面をプリントした原稿４を裏返して他
の面をプリントすることができる。両面複写後の原稿４
の処理は前記各場合に応じて処理する。As a result, by using the document reversing unit R, it is possible to turn over the document 4 printed on one side on the exposure platen 2 and print on the other side. Original 4 after double-sided copying
The processing is performed according to each of the above cases.

前記反転搬送路１１１は送込まれる原稿４の受入れおよ
び送出しを確実に行うために出口１１２、入口１１３部
に搬送ローラ対１１４が設けられ、また途中反転搬送路
１１１の湾曲に沿う搬送ローラ１１５とその上下部に圧
接する従動ローラ１１６．１１７とが設けられている。The reversing conveyance path 111 is provided with a pair of conveying rollers 114 at an exit 112 and an inlet 113 in order to reliably receive and send out the original document 4 sent therein, and a pair of conveying rollers 114 along the curvature of the reversing conveyance path 111 on the way. and driven rollers 116 and 117 that press against the upper and lower parts thereof.

また湾曲搬送路１５の給排ロア５の分枝部にも通路切換
え１１８が設けられている。Further, a path switching 118 is also provided at a branch portion of the supply/discharge lower portion 5 of the curved conveyance path 15.

後端ガイド３１や可動ガイド６７は原稿４を積層収納前
に原稿４のサイズに合った位置に移動させておいてもよ
い、これらの移動、殊に後端ガイド３１の移動はサイズ
指定によってソレノイド等で電気的に自動的に行うこと
もできる。なお、可動搬送路３６は変向によって２つの
返送経路に原稿４を導くようにしたが、それ以上の返送
経路に原稿４を導くようにしてもよい。変向動作は搬送
ローラ２６の中心軸線を中心としだ回動によって行うよ
うにしたが、搬送路の゛形状やまわりとの関係などによ
って種々に変更できる。The trailing edge guide 31 and the movable guide 67 may be moved to a position that matches the size of the document 4 before stacking and storing the documents 4. These movements, especially the movement of the trailing edge guide 31, can be performed using a solenoid according to the size specification. It can also be done electrically and automatically. Although the movable conveyance path 36 guides the document 4 to two return paths by changing direction, the document 4 may be guided to more return paths. Although the direction change operation is performed by rotation about the central axis of the conveyance roller 26, various changes can be made depending on the shape of the conveyance path and the relationship with the surroundings.

（発明の効果） 本発明によれば前記構成および作用を有するので、各種
の原稿でもそれを積層収納して所定の順番にプリントし
ながら積層収納部に戻し、繰返しプリントすることが確
実に行える。(Effects of the Invention) Since the present invention has the above-described structure and operation, it is possible to reliably store various kinds of originals in a stack, print them in a predetermined order, return them to the stack storage section, and print them repeatedly.

また各種原稿をその種類に応じた返送路の選択により所
定給紙位置に返送することが比較的簡単な構造でトラブ
ルな（行うことが、できる。Further, it is possible to return various types of originals to a predetermined paper feeding position by selecting a return path according to the type thereof with a relatively simple structure.

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

第１図は本発明の一実施例を示す複写機への設置状態の
断面図、第２図は後端ガイドと返送側の湾曲搬送路の返
送側一部分との関係を示す斜視図、第３図は後端ガイド
と補助返送路の送出し口の蓋との関係を示す斜視図、第
４図は第１図の設置状態における外観斜視図、第５図か
ら第８図に示すようには後端ガイドの位置調節とそれに
伴う返送側の湾曲搬送路および補助返送路との関係を示
す断面図、第９図は他の原稿自動供給ユニットＡや原稿
反転ユニフＩ−Ｒを連結した使用状態を示す断面図であ
る。FIG. 1 is a sectional view showing an embodiment of the present invention installed in a copying machine, FIG. 2 is a perspective view showing the relationship between the rear end guide and a portion of the return side curved conveyance path on the return side, and FIG. The figure is a perspective view showing the relationship between the rear end guide and the cover of the outlet of the auxiliary return path, Figure 4 is a perspective view of the external appearance in the installed state of Figure 1, and Figures 5 to 8 show the A sectional view showing the relationship between the adjustment of the position of the rear end guide and the curved conveyance path on the return side and the auxiliary return path. FIG. 9 shows a state in which other automatic document feeding units A and document reversing unit I-R are connected. FIG.

Claims (1)

【特許請求の範囲】[Claims] （１）原稿を積層状態に収納して一枚づつ給紙する給紙
手段付きの原稿収納部と、原稿収納部から送出される原
稿をプラテン部まで移送するとともにさらにプラテン部
から原稿収納部に返送する循環搬送路とを有した循環式
自動原稿送り装置において、 循環搬送路の原稿返送部に、原稿の種類に 応じた原稿収納部への複数の返送路と、それら各返送路
に択一的に連なるように変向でき連なった返送路に搬送
する返送原稿を送込む可動搬送路とを設けた ことを特徴とする循環式自動原稿送り装置。(1) A document storage section with a paper feeding means that stores documents in a stacked state and feeds them one by one, and a document storage section that transports the documents sent from the document storage section to the platen section and further transfers them from the platen section to the document storage section. In a circulation type automatic document feeder having a circulation conveyance path for returning documents, the document return section of the circulation conveyance path has a plurality of return paths to the document storage section according to the type of document, and a plurality of return paths for each of these return paths. 1. A circulation type automatic document feeder, comprising: a movable conveyance path that can be changed in direction so as to be continuous, and a movable conveyance path that sends return documents to be conveyed to a continuous return path.