JP2520088B2 - Electrostatic copier - Google Patents
Electrostatic copierInfo
- Publication number
- JP2520088B2 JP2520088B2 JP11743894A JP11743894A JP2520088B2 JP 2520088 B2 JP2520088 B2 JP 2520088B2 JP 11743894 A JP11743894 A JP 11743894A JP 11743894 A JP11743894 A JP 11743894A JP 2520088 B2 JP2520088 B2 JP 2520088B2
- Authority
- JP
- Japan
- Prior art keywords
- guide member
- copy paper
- movable guide
- path
- support frame
- 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.)
- Expired - Lifetime
Links
Landscapes
- Counters In Electrophotography And Two-Sided Copying (AREA)
- Controlling Sheets Or Webs (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、静電複写機、更に詳し
くは必要に応じて複写紙の両面に画像を形成することが
できる静電複写機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrostatic copying machine, and more particularly to an electrostatic copying machine capable of forming an image on both sides of a copying paper as required.
【０００２】[0002]
【従来の技術】複写紙の節約及び保管書類の枚数低減等
の見地から、複写紙の両面に画像を形成することが望ま
れることが少なくなく、それ故に、近時においては、必
要に応じて複写紙の両面に画像を形成することができる
静電複写機が提案され実用に供されるようになってき
た。かような静電複写機の典型例は、複写紙搬送経路
と、この複写紙搬送経路にシート状複写紙を供給するた
めの複写紙供給手段と、上記複写紙搬送経路の下流端に
隣接して配設された搬送制御手段と、この搬送制御手段
の下流端に隣接する上流端から延びる複写紙排出径路
と、上記搬送制御手段の下流端に隣接する上流端から延
びる複写紙逆転径路と、上記搬送制御手段の上流端に隣
接する上流端から延びる複写紙返送経路と、複写紙再供
給径路と、上記複写紙返送経路を通して返送される複写
紙を上記複写紙再供給径路を通して上記複写紙搬送経路
に再供給するための複写紙再送手段とを具備している。
上記搬送制御手段は、両者間に複写紙移動径路を規定す
る下側可動案内部材及び上側可動案内部材を含んでい
る。上記下側可動案内部材及び上側可動案内部材は、上
記複写紙搬送経路の下流端と上記複写紙排出径路の上流
端とを連通せしめる上昇位置と、上記複写紙搬送経路の
下流端と上記複写紙逆転径路の上流端とを連通せしめる
ための下降位置とに選択的に位置付けられる。2. Description of the Related Art It is often desirable to form images on both sides of a copy sheet from the standpoint of saving copy sheets and reducing the number of documents to be stored. An electrostatic copying machine capable of forming an image on both sides of a copy paper has been proposed and put into practical use. A typical example of such an electrostatic copying machine is a copy paper feeding path, copy paper feeding means for feeding a sheet copy paper to the copy paper feeding path, and a copying paper feeding path adjacent to the downstream end of the copying paper feeding path. A transfer control means, a copy paper discharge path extending from an upstream end adjacent to a downstream end of the transfer control means, and a copy paper reverse rotation path extending from an upstream end adjacent to a downstream end of the transfer control means. The copy paper return path extending from the upstream end adjacent to the upstream end of the transfer control means, the copy paper resupply path, and the copy paper returned through the copy paper return path is transferred through the copy paper resupply path to the copy paper transfer path. And a copy sheet retransmitting means for resupplying to the path.
The transport control means includes a lower movable guide member and an upper movable guide member that define a copy paper movement path therebetween. The lower movable guide member and the upper movable guide member are in a raised position for connecting the downstream end of the copy paper transport path and the upstream end of the copy paper discharge path, and the downstream end of the copy paper transport path and the copy paper. It is selectively positioned in the lowered position for communicating with the upstream end of the reverse rotation path.
【０００３】静電複写機の支持枠体構造は、所謂シェル
構造、即ち下部支持枠体と、作用位置と非作用位置との
間を旋回自在に上記下部支持枠体に装着された上部支持
枠体とを具備する構造であるのが好都合である。この場
合、複写紙搬送経路の少なくとも大部分と、複写紙排出
径路とは、上記上部支持枠体が上記作用位置に位置付け
られている時に上記下部支持枠体と上記上部支持枠体と
の間に規定されていて、上記上部支持枠体を上記非作用
位置にせしめると開放される。上記複写紙逆転径路は、
上部支持枠体内に設けられる。上記複写紙返送経路の少
なくとも大部分、上記複写紙再送手段、及び上記複写紙
供給径路の少なくとも大部分は、上記下部支持枠体内に
設けられている。The supporting frame structure of the electrostatic copying machine is a so-called shell structure, that is, an upper supporting frame mounted on the lower supporting frame so as to be rotatable between a lower supporting frame and an operating position and a non-operating position. Conveniently, the structure comprises a body. In this case, at least most of the copy paper transport path and the copy paper discharge path are between the lower support frame and the upper support frame when the upper support frame is located in the working position. It is defined and is opened when the upper support frame is brought to the non-acting position. The above copy paper reverse path is
It is provided in the upper support frame. At least most of the copy paper return path, the copy paper retransmitting means, and at least most of the copy paper supply path are provided in the lower support frame.
【０００４】上述した通りの静電複写機においては、複
写紙供給手段から複写紙搬送経路に供給された複写紙
が、複写紙搬送経路を通して搬送される間に、複写紙の
片面に画像が形成される。そして、複写紙の片面にのみ
画像を形成することが望まれる場合には、片面に画像が
形成された上記複写紙は、下降位置に位置付けられてい
る下側可動案内部材と上側可動案内部材との間の複写紙
移動径路を通して複写紙排出径路に導入され、次いで複
写紙排出径路を通して排出される。他方、複写紙の両面
に画像を形成することが望まれる場合には、片面に画像
が形成された上記複写機は、上昇位置に位置付けられて
いる下側可動案内部材と上側可動案内部材との間の複写
紙移動径路を通して複写紙逆転径路に導入される。次い
で、複写紙の後端が複写紙搬送経路の下流端を通過した
後に複写紙の移動方向が逆転されて、複写紙が複写紙返
送経路に導入され、複写紙返送経路を通して複写紙再送
手段に返送される。しかる後に、複写紙再送手段から複
写紙再供径路を通して複写紙搬送経路に複写紙が再供給
される。そして、複写紙搬送経路を通して複写紙が再搬
送される間に複写紙の他面に画像が形成される。しかる
後に、両面に画像が形成された複写紙は、下降位置に位
置付けられている下側可動案内部材と上側可動案内部材
との間の複写紙移動径路を通して複写紙排出径路に導入
され、次いで複写紙排出径路を通して排出される。In the electrostatic copying machine as described above, an image is formed on one side of the copy paper while the copy paper supplied from the copy paper supply means to the copy paper carrying path is carried through the copy paper carrying path. To be done. When it is desired to form an image on only one side of the copy sheet, the copy sheet having the image formed on one side has a lower movable guide member and an upper movable guide member which are positioned at the lowered position. It is introduced into the copy paper discharge path through the copy paper moving path between and then discharged through the copy paper discharge path. On the other hand, when it is desired to form an image on both sides of the copy paper, the copying machine having an image formed on one side has a lower movable guide member and an upper movable guide member which are positioned at the raised position. It is introduced into the copy paper reversing path through the copy paper moving path between. Then, after the trailing edge of the copy paper passes the downstream end of the copy paper transport path, the moving direction of the copy paper is reversed, the copy paper is introduced into the copy paper return path, and the copy paper is returned to the copy paper retransmitting means through the copy paper return path. Will be returned. Thereafter, the copy paper is re-supplied from the copy paper retransmitting means to the copy paper conveying path through the copy paper resupply path. Then, an image is formed on the other surface of the copy paper while the copy paper is re-conveyed through the copy paper conveyance path. Thereafter, the copy paper on which images are formed on both sides is introduced into the copy paper discharge path through the copy paper moving path between the lower movable guide member and the upper movable guide member positioned at the lowered position, and then copied. It is discharged through the paper discharge path.
【０００５】[0005]
【発明が解決しようとする課題】而して、上述した通り
の静電複写機には、次の通りの解決すべき問題がある。
即ち、搬送制御手段を構成する下側可動案内部材と上側
可動案内部材との間に規定される複写紙移動径路に少な
くとも部分的に存在して停止せしめられた複写紙を除去
するという見地から見れば、下側可動案内部材は下部支
持枠体に装着し、上側可動案内部材は上部支持枠体に装
着し、かくて、上部支持枠体を非作用位置にせしめれ
ば、上記複写紙移動径路が開放されるようにせしめるこ
とが望まれる。他方、下側可動案内部材及び上側可動案
内部材は、下降位置と上昇位置とに選択的に位置付ける
ことが必要であり、下側可動案内部材と上側可動案内部
材との双方の上記位置付けを、単一の作動手段（例えば
電磁ソレノイド）で遂行し得るようになすためには、例
えば前端部及び／又は後端部で下側可動案内部材と上側
可動案内部材を相互に連結することが意図される。しか
しながら、かくすると、容易に理解される如く、下側可
動案内部材と上側可動案内部材との双方を、下部支持枠
体又は上部支持枠体に装着することが必要であり、上述
した要望を充足することができない。The electrostatic copying machine as described above has the following problems to be solved.
That is, from the standpoint of removing the copy paper which is at least partially present in the copy paper movement path defined between the lower movable guide member and the upper movable guide member which constitutes the transport control means and which has been stopped. For example, the lower movable guide member is mounted on the lower support frame body, and the upper movable guide member is mounted on the upper support frame body. It is hoped that they will be opened. On the other hand, the lower movable guide member and the upper movable guide member are required to be selectively positioned in the lowered position and the raised position, and the above-mentioned positioning of both the lower movable guide member and the upper movable guide member is performed simply. In order to be able to carry out with one actuating means (for example an electromagnetic solenoid), it is intended, for example, to interconnect the lower movable guide member and the upper movable guide member at the front end and / or the rear end. . However, in this case, as will be easily understood, it is necessary to mount both the lower movable guide member and the upper movable guide member on the lower support frame body or the upper support frame body, which satisfies the above-mentioned demand. Can not do it.
【０００６】本発明は上記事実に鑑みてなされたもので
あり、その主たる技術的課題は、搬送制御手段を構成す
る下側可動案内部材と上側可動案内部材とが、夫々、下
部支持枠体と上部支持枠体とに装着されており、従っ
て、上部支持枠体を非作用位置にせしめると、下側可動
案内部材と上側可動案内部材との間の複写紙移動径路が
開放されるにもかかわらず、下側可動案内部材と上側可
動案内部材との双方の位置付けが、単一の作動手段によ
って遂行され、かくして上記問題を解決することができ
る静電複写機を提供することである。The present invention has been made in view of the above facts, and its main technical problem is that the lower movable guide member and the upper movable guide member constituting the transport control means are respectively provided with a lower support frame. It is attached to the upper support frame, and therefore, when the upper support frame is moved to the inoperative position, the copy paper moving path between the lower movable guide member and the upper movable guide member is opened. First, the positioning of both the lower movable guide member and the upper movable guide member is performed by a single actuating means, thus providing an electrostatic copying machine which can solve the above problems.
【０００７】[0007]
【課題を解決するための手段】本発明によれば、上記主
たる技術的課題を達成する静電複写機として、下部支持
枠体と、作用位置と非作用位置との間を旋回自在に該下
部支持枠体に装着された上部支持枠体と、複写紙搬送経
路と、該複写紙搬送経路にシート状複写紙を供給するた
めの複写紙供給手段と、該複写紙搬送経路の下流端に隣
接して配設された搬送制御手段と、該搬送制御手段の下
流端に隣接する上流端から延びる複写紙排出径路と、該
搬送制御手段の下流端に隣接する上流端から延びる複写
紙逆転径路と、該搬送制御手段の上流端に隣接する上流
端から延びる複写紙返送経路とを具備し、該複写紙搬送
経路の少なくとも大部分は、該上部支持枠体が該作用位
置に位置付けられている時に該下部支持枠体と該上部支
持枠体との間に規定されていて、該上部支持枠体を該非
作用位置にせしめると開放され、該複写紙逆転径路は、
該上部支持枠体内に設けられており、該複写紙返送経路
は、該下部支持枠体内に設けられており、該搬送制御手
段は、両者間に複写紙移動径路を規定する下側可動案内
部材及び上側可動案内部材を含み、該下側可動案内部材
及び該上側可動案内部材は、該複写紙搬送経路の下流端
と該複写紙排出径路の上流端とを連通せしめる上昇位置
と、該複写紙搬送経路の下流端と該複写紙逆転径路の上
流端とを連通せしめるための下降位置とに選択的に位置
付けられ、該複写紙供給手段から該複写紙搬送経路に供
給された複写紙が、該複写紙搬送経路を通して搬送され
る間に、複写紙の片面に画像が形成され、そして、片面
に画像が形成された複写紙は、該下降位置に位置付けら
れている該下側可動案内部材と該上側可動案内部材との
間の複写紙移動径路を通して該複写紙排出径路に導入さ
れ、次いで該複写紙排出径路を通して排出され、或い
は、片面に画像が形成された複写紙は、該上昇位置に位
置付けられている該下側可動案内部材と該上側可動案内
部材との間の複写紙移動径路を通して該複写紙逆転径路
に導入され、次いで複写紙の後端が該複写紙搬送経路の
下流端を通過した後に複写紙の移動方向が逆転されて、
該複写紙返送経路に導入され、該複写紙返送経路を通し
て返送されて該複写紙搬送経路に再供給され、該複写紙
搬送経路を通して再搬送される間に複写紙の他面に画像
が形成され、しかる後に該下降位置に位置付けられてい
る該下側可動案内部材と該上側可動案内部材との間の複
写紙移動径路を通して該複写紙排出径路に導入され、次
いで該複写紙排出径路を通して排出される型の静電複写
機において；該下側可動案内部材は該下部支持枠体に装
着され、該上側可動案内部材は該上部支持枠体に装着さ
れていて、該上部支持枠体が該非作用位置にせしめられ
ると、該下側可動案内部材と該上側可動案内部材との間
の該複写紙移動径路が開放され、該上側可動案内部材と
該下側可動案内部材とのいずれか一方は該下降位置と該
上昇位置とのいずれか一方に偏倚されており、該上側可
動案内部材と該下側可動案内部材との他方には、これを
該下降位置と該上昇位置とに選択的に位置付ける作動手
段が付設されており、該上側可動案内部材と該下側可動
案内部材との該他方には当接手段が形成され、該上側可
動案内部材と該下側可動案内部材との該一方には被当接
手段が形成されており、該上側可動案内部材と該下側可
動案内部材との該他方が該下降位置と該上昇位置との該
一方から他方に移動せしめられると、該当接手段が該被
当接手段に作用して該上側可動案内部材と該下側可動案
内部材との該一方を該下降位置と該上昇位置との該他方
に強制的に移動せしめる、ことを特徴とする静電複写機
が提供さる。According to the present invention, as an electrostatic copying machine that achieves the above-mentioned main technical problems, the lower support frame and the lower support frame are rotatably movable between a working position and a non-working position. An upper support frame mounted on the support frame, a copy paper conveyance path, copy paper supply means for supplying a sheet copy paper to the copy paper conveyance path, and adjacent to a downstream end of the copy paper conveyance path Transport control means, a copy paper discharge path extending from the upstream end adjacent to the downstream end of the transfer control means, and a copy paper reverse rotation path extending from the upstream end adjacent to the downstream end of the transfer control means. A copy paper return path extending from an upstream end adjacent to the upstream end of the transfer control means, at least a majority of the copy paper transfer path being located when the upper support frame is in the working position. A rule is set between the lower support frame and the upper support frame. Have been, the upper support frame body is opened and allowed to the non-operative position, the copying paper reversing path is
The copy paper return path is provided inside the upper support frame, and the transfer control means is a lower movable guide member that defines a copy paper movement path therebetween. And an upper movable guide member, and the lower movable guide member and the upper movable guide member make the copy paper conveyance path and the upstream end of the copy paper discharge path communicate with each other, and the copy paper. The copy paper, which is selectively positioned at the descending position for connecting the downstream end of the transport path and the upstream end of the copy paper reverse rotation path, and is supplied from the copy paper supply means to the copy paper transport path is An image is formed on one side of the copy sheet while being conveyed through the copy sheet conveying path, and the copy sheet having the image formed on the one side is the lower movable guide member positioned at the lowered position and the lower movable guide member. Copy paper moving diameter between upper movable guide member Through the copy paper discharge path and then discharged through the copy paper discharge path, or an image is formed on one side of the copy paper, the lower movable guide member positioned at the raised position and the upper side. It is introduced into the copy paper reversing path through the copy paper moving path between the movable guide member and the copy paper reversing path, and then the moving direction of the copy paper is reversed after the trailing end of the copy paper passes the downstream end of the copy paper conveying path.
An image is formed on the other surface of the copy paper while being introduced into the copy paper return path, returned through the copy paper return path, re-supplied to the copy paper conveyance path, and re-conveyed through the copy paper conveyance path. After that, it is introduced into the copy paper discharge path through the copy paper moving path between the lower movable guide member and the upper movable guide member which are positioned in the lowered position, and then discharged through the copy paper discharge path. Type electrostatic copier; the lower movable guide member is mounted on the lower support frame body, the upper movable guide member is mounted on the upper support frame body, and the upper support frame body is inoperative. When set to the position, the copy paper movement path between the lower movable guide member and the upper movable guide member is opened, and one of the upper movable guide member and the lower movable guide member is opened. Either the lowered position or the raised position One of the upper movable guide member and the lower movable guide member is provided with an operating means for selectively positioning the upper movable guide member and the lower movable guide member in the lowered position and the raised position. A contact means is formed on the other of the upper movable guide member and the lower movable guide member, and a contacted means is formed on one of the upper movable guide member and the lower movable guide member. When the other of the upper movable guide member and the lower movable guide member is moved from the one of the lowered position and the raised position to the other, the corresponding contact means acts on the contacted means. There is provided an electrostatic copying machine characterized in that one of the upper movable guide member and the lower movable guide member is forcibly moved to the other of the lowered position and the raised position.
【０００８】[0008]
【作用】作動手段（電磁ソレノイド）が除勢されている
時には、下側可動案内部材下降位置に位置付けられてお
り、引張ばねによって弾性的に偏倚されている上側可動
案内部材は、被当接手段が下側可動案内部材当接手段に
当接せしめられ、下降位置に位置付けられる。一方、作
動手段（電磁ソレノイド）が付勢されると、下側可動案
内部材は上昇位置に位置付けら、該下側可動案内部材に
おける当接手段及びこれと協働する上側可動案内部材に
おける被当接手段により、上側可動案内部材も引張ばね
の弾性偏倚作用に抗して上昇位置に位置付けられる。ま
た、上部支持枠体が作用位置から非作用位置に向けて移
動せしめられると、上側可動案内部材が下側可動案内部
材から上方に離隔し、両者間に規定されている複写紙移
動径路が開放される。When the actuating means (electromagnetic solenoid) is deenergized, the upper movable guide member, which is positioned at the lower movable guide member descending position and is elastically biased by the tension spring, is the contacted means. Is brought into contact with the lower movable guide member contacting means, and is positioned at the lowered position. On the other hand, when the actuating means (electromagnetic solenoid) is energized, the lower movable guide member is positioned in the raised position, and the abutting means in the lower movable guide member and the contact in the upper movable guide member cooperating therewith. The contact means also positions the upper movable guide member in the raised position against the elastic biasing action of the tension spring. Further, when the upper support frame is moved from the operating position to the non-operating position, the upper movable guide member is separated upward from the lower movable guide member, and the copy paper movement path defined between them is opened. To be done.
【０００９】[0009]
【実施例】以下、添付図面を参照して、本発明に従って
構成された静電複写機の一具体例について詳述する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific example of an electrostatic copying machine constructed according to the present invention will be described in detail below with reference to the accompanying drawings.
【００１０】静電複写機全体の概要 第１図は、本発明に従って構成された静電複写機の一具
体例における主要構成要素を簡略に図示している。第１
図に図示する静電複写機は、略長方体形状のハウジング
２を具備している。このハウジング２の上面には、複写
すべき原稿（図示していない）が載置される静止透明板
４と、この透明板４及びその上に載置された原稿を覆う
ための開閉自在な原稿押え部材６とが配設されている。
ハウジング２内の略中央部には、周表面に静電感光体を
有する回転ドラム８が回転自在に装着されている。矢印
１０で示す方向に回転駆動される回転ドラム８の周囲に
は、矢印１０で示す方向に見て順次に、帯電域１２、露
光域１４、現像域１６、転写域１８及びクリーニング域
２０が規定されている。帯電域１２には帯電用コロナ放
電器２２が配設され、現像域１６には現像装置２４が配
設され、転写域１８には転写用コロナ放電器２６及び剥
離用コロナ放電器２８が配設され、そしてクリーニング
域２０には除電ランプ３０及び残留トナー除去ブレード
３２が配設されている。 General Outline of Electrostatic Copier FIG. 1 schematically shows main components in an embodiment of the electrostatic copier constructed according to the present invention. First
The electrostatic copying machine shown in the figure includes a housing 2 having a substantially rectangular shape. On the upper surface of the housing 2, a stationary transparent plate 4 on which a document (not shown) to be copied is placed, and an openable and closable document for covering the transparent plate 4 and the document placed on the transparent plate 4. A pressing member 6 is provided.
A rotary drum 8 having an electrostatic photosensitive member on its peripheral surface is rotatably mounted in a substantially central portion of the housing 2. A charging area 12, an exposure area 14, a developing area 16, a transfer area 18, and a cleaning area 20 are defined in order around the rotary drum 8 which is rotationally driven in the direction indicated by the arrow 10, when viewed in the direction indicated by the arrow 10. Has been done. The charging area 12 is provided with a charging corona discharger 22, the developing area 16 is provided with a developing device 24, and the transfer area 18 is provided with a transfer corona discharger 26 and a peeling corona discharger 28. Then, the cleaning area 20 is provided with a charge eliminating lamp 30 and a residual toner removing blade 32.
【００１１】回転ドラム８の上方には、全体を番号３４
で示す光学系が配設されている。この光学系３４は、可
動原稿照明ランプ３６、第１の可動反射鏡３８、第２の
可動反射鏡４０、第３の可動反射鏡４２、静止レンズ組
立体４４及び静止反射鏡４６を含んでいる。走査露光の
際には、可動原稿照明ランプ３６及び第１の可動反射鏡
３８は、実線で示す走査露光開始位置から実質上水平に
所要位置（例えば２点鎖線で示す最大走査露光終了位
置）まで所要速度Ｖで移動せしめられ、第２の可動反射
鏡４０及び第３の可動反射鏡４２は、実線で示す走査露
光開始位置から実質上水平に所要位置（例えば２点鎖線
で示す最大走査露光終了位置）まで上記所要速度の半分
の速度Ｖ／２で移動せしめられる。この際に、上記透明
板４上に載置された原稿が可動原稿照明ランプ３６によ
って照射され、原稿からの反射光が、第１、第２及び第
３の可動反射鏡３８、４０及び４２に順次に反射されて
レンズ組立体４４に至り、次いで、静止反射鏡４６に反
射されて上記露光域１４において感光体上に投射され
る。走査露光が終了すると、可動原稿照明ランプ３６並
びに第１、第２及び第３の反射鏡３８、４０及び４２
は、実線で示す走査露光開始位置に戻される。Above the rotary drum 8, the reference numeral 34
The optical system indicated by is provided. The optical system 34 includes a movable original illumination lamp 36, a first movable reflecting mirror 38, a second movable reflecting mirror 40, a third movable reflecting mirror 42, a stationary lens assembly 44 and a stationary reflecting mirror 46. . During the scanning exposure, the movable original illumination lamp 36 and the first movable reflecting mirror 38 are moved substantially horizontally from the scanning exposure start position shown by the solid line to a required position (for example, the maximum scanning exposure end position shown by the two-dot chain line). The second movable reflecting mirror 40 and the third movable reflecting mirror 42 are moved at the required speed V, and the second movable reflecting mirror 40 and the third movable reflecting mirror 42 are moved substantially horizontally from the scanning exposure start position indicated by the solid line to the required position (for example, the maximum scanning exposure end indicated by the chain double-dashed line). To a position) at a speed V / 2 which is half the required speed. At this time, the document placed on the transparent plate 4 is illuminated by the movable document illumination lamp 36, and the reflected light from the document is reflected by the first, second and third movable reflecting mirrors 38, 40 and 42. The light is sequentially reflected to reach the lens assembly 44, and then is reflected by the stationary reflecting mirror 46 to be projected on the photoconductor in the exposure area 14. When the scanning exposure is completed, the movable original illumination lamp 36 and the first, second and third reflecting mirrors 38, 40 and 42.
Is returned to the scanning exposure start position indicated by the solid line.
【００１２】ハウジング２の片端部、即ち第１図におい
て右端部には、全体を番号４８で示す複写紙供給手段が
設けられている。図示の複写紙供給手段４８は、下部カ
セット受部５０ａ、中間部カセット受部５０ｂ及び上部
カセット受部５０ｃを含んでいる。下部カセット受部５
０ａ、中間部カセット受部５０ｂ及び上部カセット受部
５０ｃには、夫々、異なった寸法のシート状複写紙を収
納した数種類の複写紙カセット５２のうちのいずれかが
選択的に着脱自在に装着される。下部カセット受部５０
ａ、中間部カセット受部５０ｂ及び上部カセット受部５
０ｃの各々には、そこに装着された複写紙カセット５２
から複写紙を１枚毎送出するための送出ローラ５４ａ、
５４ｂ及び５４ｃが配設されている。下部カセット受部
５０ａに装着された複写紙カセット５２から送出された
複写紙は、複写紙送給径路５６ａを通して全体を番号５
８で示す複写紙搬送経路に導入される。中間部カセット
受部５０ｂに装着された複写紙カセット５２から送出さ
れた複写紙は、複写紙送給径路５６ｂ及び５６ａを通し
て複写紙搬送経路５８に導入される。上部カセット受部
５０ｃに装着された複写紙カセット５２から送出された
複写紙は、複写紙送給径路５６ｃ、５６ｂ及び５６ａを
通して複写紙搬送経路５８に導入される。複写紙送給径
路５６ａは案内板６０の上流部と案内板６２の一部とに
よって規定されており、複写紙送給径路５６ｂは案内板
対６４によって規定されており、複写紙送給径路５６ｃ
は案内板対６６によって規定されている。複写紙送給径
路５６ａの上流端と複写紙送給径路５６ｂの下流端との
間には送給ローラ対６８が配設されており、複写紙送給
径路５６ｂの上流端と複写紙送給径路５６ｃの下流端と
の間には送給ローラ対６９が配設されている。At one end portion of the housing 2, that is, at the right end portion in FIG. The illustrated copy paper feeding means 48 includes a lower cassette receiving portion 50a, an intermediate cassette receiving portion 50b, and an upper cassette receiving portion 50c. Lower cassette receiving part 5
0a, the intermediate cassette receiving portion 50b, and the upper cassette receiving portion 50c are each selectively detachably mounted with one of several types of copy paper cassettes 52 accommodating sheet copy papers of different sizes. It Lower cassette receiving part 50
a, middle cassette receiving portion 50b and upper cassette receiving portion 5
0c has a copy paper cassette 52 mounted therein.
Feeding roller 54a for feeding the copy paper one by one from the
54b and 54c are provided. The copy paper sent from the copy paper cassette 52 mounted on the lower cassette receiving portion 50a is numbered 5 as a whole through the copy paper feeding path 56a.
It is introduced into the copy paper conveyance path indicated by 8. The copy paper delivered from the copy paper cassette 52 mounted on the intermediate cassette receiving portion 50b is introduced into the copy paper transport path 58 through the copy paper feed paths 56b and 56a. The copy paper delivered from the copy paper cassette 52 mounted in the upper cassette receiving portion 50c is introduced into the copy paper transport path 58 through the copy paper feed paths 56c, 56b and 56a. The copy paper feed path 56a is defined by the upstream portion of the guide plate 60 and a part of the guide plate 62, and the copy paper feed path 56b is defined by the guide plate pair 64, and the copy paper feed path 56c.
Is defined by the guide plate pair 66. A pair of feeding rollers 68 are disposed between the upstream end of the copy paper feed path 56a and the downstream end of the copy paper feed path 56b, and the feed roller pair 68 is provided between the upstream end of the copy paper feed path 56b and the copy paper feed path. A feed roller pair 69 is arranged between the downstream end of the path 56c and the downstream end.
【００１３】上記複写紙搬送経路５８は、上流端７０か
ら下流端７２まで第１図において右から左に略水平に延
びている。かかる複写紙搬送経路５８は、上記案内板６
０の下流部及び案内板７４の下流部、搬送ローラ対７
６、案内板対７８、搬送ローラ対８０、案内板８２、上
記転写域１８（即ち回転ドラム８と転写用コロナ放電２
６及び剥離用コロナ放電２８との間）、搬送ベルト機構
８４、案内板８６、加熱定着ローラ対８８、案内板対９
０及び搬送ローラ対９２によって規定されている。上記
複写紙搬送経路５８の下流端７２に隣接して、搬送制御
手段９４が配設されている。この搬送制御手段９４は、
両者間に複写紙移動径路９６を規定する下側可動案内部
材９８及び上側可動案内部材１００を含む。下側可動案
内部材９８及び上側可動案内部材１００は、実線で示す
下降位置と２点鎖線で示す上昇位置とに選択的に位置付
けられる。かような搬送制御手段９４については、後に
更に詳述する。搬送制御手段９４の下流側には、排出ロ
ーラ対１０２を有する複写紙排出径路１０４が設けられ
ている。そして、ハウジング２の他端部、即ち第１図に
おいて左端部には、受皿１０６が着脱自在に装着されて
いる。The copy paper transport path 58 extends substantially horizontally from right to left in FIG. 1 from an upstream end 70 to a downstream end 72. The copy sheet conveying path 58 is formed by the guide plate 6 described above.
0 downstream portion and the guide plate 74 downstream portion, the transport roller pair 7
6, a guide plate pair 78, a conveyance roller pair 80, a guide plate 82, the transfer area 18 (that is, the rotary drum 8 and the transfer corona discharge 2
6 and the corona discharge 28 for peeling), the conveyor belt mechanism 84, the guide plate 86, the heat fixing roller pair 88, the guide plate pair 9
0 and the conveying roller pair 92. A conveyance control unit 94 is arranged adjacent to the downstream end 72 of the copy sheet conveyance path 58. This transport control means 94 is
It includes a lower movable guide member 98 and an upper movable guide member 100 that define a copy paper movement path 96 between them. The lower movable guide member 98 and the upper movable guide member 100 are selectively positioned at the lowered position shown by the solid line and the raised position shown by the chain double-dashed line. The transport control means 94 will be described in detail later. A copy paper discharge path 104 having a pair of discharge rollers 102 is provided on the downstream side of the conveyance control unit 94. The tray 106 is detachably attached to the other end of the housing 2, that is, the left end in FIG.
【００１４】更に、上記搬送制御手段９４に関連せしめ
て、全体を番号１０８で示す複写紙逆転径路と、全体を
番号１１０で示す複写紙返送経路とが配設されている。
案内板対１１２によって規定されている複写紙逆転径路
１０８は、譲渡搬送制御手段９４の下流端に隣接する上
流端から適宜の湾曲形状に延びている。複写紙逆転径路
１０８の上流端には、実線で示す非作用位置と２点鎖線
で示す作用位置とに選択的に位置付けられる逆転ローラ
１１４が配設されている。複写紙返送経路１１０は、上
記搬送制御手段９４の上流端に隣接する上流端から第１
図において左から右に幾分下方に傾斜して延びている。
この複写紙返送経路１１０は、その上流端部に配設され
た案内板対１１６と、かかる案内板対１１６の下流側に
配設された全体を番号１１８で示す返送制御機構とによ
って規定されている。返送制御機構１１８は、本出願人
の出願にかかる昭和５９年特許願第２５１５６５号（発
明の名称：静電複写機、出願日：昭和５９年１１月３０
日）の明細書及び図面に開示されている通りの構成でよ
い。第１図を参照することによって容易に理解される如
く、搬送制御手段９４の下側可動案内部材９８及び上側
可動案内部材１００が実線で示す下降位置に位置付けら
れている時には、複写紙搬送経路５８と複写紙排出径路
１０４とが、搬送制御手段９４における複写紙移動径路
９６を介して相互に連通される。一方、下側可動案内部
材９８及び上側可動案内部材１００が２点鎖線で示す上
昇位置に位置付けられると、複写紙搬送経路５８と複写
紙逆転径路１０８とが、搬送制御手段９４における複写
紙移動径路９６を介して相互に連通せしめられると共
に、複写紙逆転径路１０８と複写紙返送経路１１０と
が、搬送制御手段９４における複写紙移動径路９６を介
して相互に連通せしめられる。Further, in association with the transport control means 94, there are provided a copy paper reversing path generally designated by numeral 108 and a copy paper returning path generally designated by numeral 110.
The copy paper reverse rotation path 108 defined by the pair of guide plates 112 extends from the upstream end adjacent to the downstream end of the transfer / conveyance control means 94 to an appropriate curved shape. At the upstream end of the copy paper reversing path 108, a reversing roller 114 that is selectively positioned between the non-acting position shown by the solid line and the working position shown by the two-dot chain line is arranged. The copy sheet return path 110 is located from the upstream end adjacent to the upstream end of the conveyance control means 94 to the first end.
In the figure, it extends from left to right with a slight incline.
The copy sheet return path 110 is defined by a guide plate pair 116 arranged at the upstream end thereof and a return control mechanism indicated by reference numeral 118 as a whole on the downstream side of the guide plate pair 116. There is. The return control mechanism 118 is a patent application No. 251565 of 1984 (application name: electrostatic copying machine, filing date: November 30, 1984) filed by the applicant.
The configuration may be as disclosed in the specification and drawings of Japanese. As will be easily understood by referring to FIG. 1, when the lower movable guide member 98 and the upper movable guide member 100 of the conveyance control unit 94 are positioned at the lowered position shown by the solid line, the copy paper conveyance path 58. The copy paper discharge path 104 and the copy paper discharge path 104 are communicated with each other via the copy paper movement path 96 in the conveyance control means 94. On the other hand, when the lower movable guide member 98 and the upper movable guide member 100 are positioned at the ascending position indicated by the chain double-dashed line, the copy paper conveyance path 58 and the copy paper reverse rotation path 108 become the copy paper movement path in the conveyance control means 94. The copy paper reversing path 108 and the copy paper returning path 110 are connected to each other via the copy paper moving path 96 in the conveyance control means 94.
【００１５】図示の静電複写機においては、更に上記複
写紙返送経路１１０の下方に全体を番号１２０で示す複
写紙再送手段が設けられている。この複写紙再送手段１
２０は、実質上水平に延びる受台１２２を有する。受台
１２２の前端、即ち第１図において右端には、停止手段
１２４が配設されている。かかる停止手段１２４は、実
線で示す作用位置と２点鎖線で示す非作用位置とのいず
れかに選択的に位置付けられる。上記受台１２２の前端
部上には、送給ローラ１２６が設けられている。この送
給ローラ１２６は、受台１２２の上面に接触する図示の
位置から上方へ自由に移動し得るように装着されてお
り、通常はそれ自体の重量（必要ならば適宜のばね手
段）による偏倚作用によって下方へ強制されている。更
に、上記複写紙再送手段１２０の前端から上記複写紙搬
送経路５８の上流端７０まで延びる、全体を番号１２８
で示す複写紙再送給径路が設けられている。この複写紙
際送給径路１２８は、案内板１３０、再送給ローラ１３
２、再送給ローラ対１３４、案内板対１３６、及び上記
案内板７４の上流部によって規定されている。In the electrostatic copying machine shown in the figure, a copy paper retransmitting means generally designated by 120 is provided below the copy paper returning path 110. This copy paper retransmitting means 1
20 has a pedestal 122 that extends substantially horizontally. Stop means 124 is arranged at the front end of the cradle 122, that is, at the right end in FIG. The stopping means 124 is selectively positioned at either the operating position shown by the solid line or the non-operating position shown by the chain double-dashed line. A feeding roller 126 is provided on the front end of the cradle 122. The feeding roller 126 is mounted so as to be able to freely move upward from the position shown in contact with the upper surface of the pedestal 122, and is normally biased by its own weight (appropriate spring means if necessary). Forced downward by action. Further, the whole number 128 extends from the front end of the copy paper retransmitting means 120 to the upstream end 70 of the copy paper transport path 58.
A copy paper re-feeding path indicated by is provided. The paper feeding path 128 for copying paper is provided with a guide plate 130 and a re-feed roller 13.
2, the re-feed roller pair 134, the guide plate pair 136, and the upstream portion of the guide plate 74.
【００１６】上述した通り図示の静電複写機の作用を概
説すると、次の通りである。回転ドラム８は矢印１０で
示す方向に回転せしめられ、帯電域１２においては、帯
電用コロナ放電器２６によって回転ドラム８上の感光体
の表面が特性極性に帯電され、露光域１４においては、
透明板４上に載置された原稿の像が光学系３４によって
感光体上に走査露光され、かくして感光体上に静電潜像
が形成される。現像域１６においては、現像装置２４に
よって感光体上の静電潜像にトナーが施されて静電潜像
がトナー像に現像される。転写域１８においては、転写
域１８を通して搬送される複写紙（複写紙の搬送につい
ては後に更に言及する）が感光体の表面に接触せしめら
れ、転写用コロナ放電器２６の作用によって感光体上の
トナー像が複写紙上に転写される。次いで、剥離用コロ
ナ放電器２８の作用によって感光体から複写紙が剥離さ
れる。剥離された複写紙は、加熱定着ーラ対８８に搬送
され、ローラ対８８を通る際にトナー像が複写紙上に定
着される。一方、クリーニング域２０においては、除電
ランプ３０からの光が感光体に照射されて感光体上の残
留電荷が消失せしめられ、次いで残留トナーブレード３
２の作用によって感光体の表面から残留トナーが除去さ
れる。The outline of the operation of the illustrated electrostatic copying machine as described above is as follows. The rotary drum 8 is rotated in the direction shown by the arrow 10, and in the charging area 12, the surface of the photoconductor on the rotary drum 8 is charged to a characteristic polarity by the charging corona discharger 26, and in the exposure area 14,
The image of the original document placed on the transparent plate 4 is scanned and exposed on the photoconductor by the optical system 34, thus forming an electrostatic latent image on the photoconductor. In the developing area 16, the developing device 24 applies toner to the electrostatic latent image on the photoconductor to develop the electrostatic latent image into a toner image. In the transfer area 18, copy paper conveyed through the transfer area 18 (the transfer of copy paper will be further referred to later) is brought into contact with the surface of the photoconductor, and the transfer corona discharger 26 acts on the photoconductor. The toner image is transferred onto the copy paper. Next, the copy paper is peeled from the photoconductor by the action of the peeling corona discharger 28. The peeled copy paper is conveyed to the heat fixing roller pair 88, and the toner image is fixed on the copy paper when passing through the roller pair 88. On the other hand, in the cleaning area 20, the light from the charge eliminating lamp 30 is applied to the photoconductor to erase the residual charge on the photoconductor, and then the residual toner blade 3 is discharged.
By the action of 2, the residual toner is removed from the surface of the photoconductor.
【００１７】複写紙の搬送について説明すると、次の通
りである。最初に、複写紙の片面のみに画像を形成する
場合について説明する。この場合には、搬送制御手段９
４の下側可動案内部材９８及び上側可動案内部材１００
は、実線で示す下降位置に位置付けられる。下部カセッ
ト受部５０ａ、中間部カセット受部５０ｂ又は上部カセ
ット受部５０ｃに装着された複写紙カセット５２から複
写紙搬送経路５８に導入された複写紙は、複写紙搬送経
路５８を通して搬送される。この間には、転写域１８に
おいて複写紙の片面（即ち上面）にトナー像が転写さ
れ、そしてかかるトナー像が加熱定着ローラ対８８の作
用によって複写紙の片面上に定着され、かくして複写紙
の片面に画像が形成される。次いで、複写紙は、複写紙
搬送経路５８から搬送制御手段９４における複写紙移動
径路９６を通して複写紙排出径路１０４に導入され、複
写紙排出径路１０４を通して受皿１０６に排出される。
かくして、その片面に画像が形成されている複写物が得
られる。The conveyance of copy paper will be described below. First, the case where an image is formed on only one side of copy paper will be described. In this case, the transport control means 9
4 lower movable guide member 98 and upper movable guide member 100
Are positioned in the lowered position indicated by the solid line. The copy paper introduced from the copy paper cassette 52 mounted on the lower cassette receiving portion 50a, the intermediate cassette receiving portion 50b, or the upper cassette receiving portion 50c to the copy paper transporting path 58 is transported through the copy paper transporting path 58. During this time, the toner image is transferred to one side (that is, the upper surface) of the copy paper in the transfer area 18, and the toner image is fixed on the one side of the copy paper by the action of the heat fixing roller pair 88, and thus the one side of the copy paper. An image is formed on. Next, the copy sheet is introduced from the copy sheet conveying path 58 to the copy sheet discharging path 104 through the copy sheet moving path 96 in the conveying control means 94, and is discharged to the tray 106 through the copy sheet discharging path 104.
Thus, a copy having an image formed on one side thereof is obtained.
【００１８】複写紙の両面に画像を形成する場合には、
最初に、搬送制御手段９４の下側可動案内部材９８及び
上側可動案内部材１００が２点鎖線で示す上昇位置に位
置付けられる。次いで、複写工程が開始されると、下部
カセット受部５０ａ、中間部カセット受部５０ｂ又は上
部カセット受部５０ｃに装着された複写紙カセット５２
から複写紙搬送経路５８に導入された複写紙は、複写紙
搬送経路５８を通して搬送される。この間には、転写域
１８において複写紙の片面（即ち上面）にトナー像が転
写され、そしてかかるトナー像が加熱定着ローラ対８８
の作用によって複写紙の片面上に定着され、かくして複
写紙の片面に画像が形成される。複写紙搬送経路５８か
らの複写紙は、搬送制御手段９４における複写紙移動径
路９６を通して複写紙逆転径路１０８に導入され、複写
紙逆転径路１０８中を矢印１３８で示す方向に進む。こ
の際、複写紙の下面は、矢印１４０で示す方向に回転駆
動されているところの排出ローラ対１０２の一方１０２
ａに接触するが、排出ローラ１０２ａと複写紙との間に
は滑りが生成され、それ故に、複写紙は、ローラ１０２
ａが矢印１４０で示す方向に回転駆動されているにもか
かわらず、矢印１３８で示す方向に進行することができ
る。複写紙の後端が複写紙搬送経路５８の下流端、即ち
搬送ローラ対９２のニップ部位を通過すると、複写紙逆
転径路１０８の上流端に設けられている逆転ローラ１１
４が２点鎖線で示す作用位置に位置付けられ、これによ
って複写紙が排出ローラ対１０２の一方１０２ａに押付
けられる。かくすると、矢印１４０で示す方向に回転駆
動されているところの排出ローラ１０２ａの作用によ
り、複写紙は前後を逆にして矢印１４２で示す方向に進
行せしめられる。そして、矢印１４０で示す方向に回転
駆動されているところの搬送ローラ対９２の一方９２ａ
と案内板対１１６の一方１１６ａとの間を通して、複写
紙返送経路１１０に導入され、複写紙返送経路１１０を
通って進行する。複写紙逆転径路１０８における逆転ロ
ーラ１１４は、複写紙が複写紙返送経路１１０に導入さ
れた後の適宜の時点で、実線で示す非作用位置に戻され
る。When images are formed on both sides of copy paper,
First, the lower movable guide member 98 and the upper movable guide member 100 of the conveyance control means 94 are positioned at the raised position shown by the chain double-dashed line. Next, when the copying process is started, the copy paper cassette 52 mounted on the lower cassette receiving portion 50a, the intermediate cassette receiving portion 50b or the upper cassette receiving portion 50c.
The copy paper introduced from the copy paper conveyance path 58 is conveyed through the copy paper conveyance path 58. During this period, the toner image is transferred to one surface (that is, the upper surface) of the copy paper in the transfer area 18, and the toner image is heated and fixed by the roller pair 88.
Is fixed on one side of the copy paper, and thus an image is formed on one side of the copy paper. The copy sheet from the copy sheet conveying path 58 is introduced into the copy sheet reversing path 108 through the copy sheet moving path 96 in the conveyance control means 94, and advances in the copy sheet reversing path 108 in the direction indicated by an arrow 138. At this time, the lower surface of the copy paper 102 is one of the pair of discharge rollers 102 that is being driven to rotate in the direction indicated by arrow 140.
a, but a slip is created between the discharge roller 102a and the copy paper, and therefore the copy paper is not
Although a is rotationally driven in the direction indicated by arrow 140, it can proceed in the direction indicated by arrow 138. When the trailing end of the copy paper passes the downstream end of the copy paper transport path 58, that is, the nip portion of the transport roller pair 92, the reverse roller 11 provided at the upstream end of the copy paper reverse rotation path 108.
4 is positioned at the operating position indicated by the chain double-dashed line, whereby the copy paper is pressed against the one 102a of the discharge roller pair 102. As a result, the copy sheet is moved in the direction shown by the arrow 142 with its front and back reversed by the action of the discharge roller 102a which is being rotationally driven in the direction shown by the arrow 140. Then, one side 92a of the conveying roller pair 92, which is being rotationally driven in the direction indicated by the arrow 140.
And the guide plate pair 116 and one of the pair of guide plates 116a are introduced into the copy paper return path 110 and proceed through the copy paper return path 110. The reverse rotation roller 114 in the copy paper reverse rotation path 108 is returned to the non-acting position shown by the solid line at an appropriate time after the copy paper is introduced into the copy paper return path 110.
【００１９】複写紙返送経路１１０を通して進行せしめ
られる複写紙は、複写紙再送手段１２０の受台１２２上
に導かれ、受台１２２上を第１図において右方へ進む。
そして、矢印１４４で示す方向に回転せしめられている
送給ローラ１２６が複写紙に作用して複写紙を更に右方
へ送給し、かくして複写紙の前縁が実線で示す作用位置
に位置付けられている停止手段１２４に当接せしめられ
る。かくすると、複写紙の進行が阻止されて複写紙は複
写紙再送手段１２０上の所要位置に停止せしめられる。
この時点において送給ローラ１２６が矢印１４４で示す
方向に回転せしめられていても、送給ローラ１２６と複
写紙との間には滑りが生成され、複写紙が更に前進せし
められることはない。The copy sheet advanced through the copy sheet return path 110 is guided to the receiving table 122 of the copy sheet retransmitting means 120, and moves on the receiving table 122 to the right in FIG.
Then, the feeding roller 126, which is rotated in the direction indicated by the arrow 144, acts on the copy sheet to further feed the copy sheet to the right, and thus the leading edge of the copy sheet is positioned at the operating position indicated by the solid line. It is brought into abutment with the stopping means 124. As a result, the progress of the copy sheet is blocked and the copy sheet is stopped at the required position on the copy sheet retransmitting means 120.
Even if the feeding roller 126 is rotated in the direction indicated by the arrow 144 at this time point, a slip is generated between the feeding roller 126 and the copy sheet, and the copy sheet is not further advanced.
【００２０】上述した如くして複写紙再送手段１２０に
所要枚数の複写紙が返送されると、搬送制御手段９４の
下側可動案内部材９８及び上側可動案内部材１００が実
線で示す下降位置に戻される。そして、複写紙再送手段
１２０における停止手段１２４が２点鎖線で示す非作用
位置に位置付けられ、矢印１４４で示す方向に回転駆動
される送給ローラ１２６の作用によって、複写紙再送手
段１２０から複写紙が複写紙再供給径路１２８に送出さ
れる。複写紙再供給径路１２８に送出された複写紙は、
１枚毎複写紙再供給径路１２８を通って前進せしめられ
て、再び複写紙搬送経路５８に供給される。かかる複写
紙は、第１図を参照することによって容易に理解される
如く、略半円形状の複写紙再供給径路１２８を通ること
によって表裏が反転され、既に画像が形成された片面を
下面にした状態で複写紙搬送経路５８に供給される。次
いで、複写紙は複写紙搬送経路５８を通して搬送され
る。この際には、転写域１８において複写紙の他面即ち
上面にトナー像が転写され、加熱定着ローラ対８８の作
用によってかかるトナー像が複写紙上に定着され、かく
して複写紙の他面に画像が形成される。次いで、複写紙
は、複写紙搬送経路５８から搬送制御手段９４における
複写紙移動径路９６を通して複写紙排出径路１０４に導
入され、複写紙排出径路１０４を通して受皿１０６に排
出される。かくして、両面に画像が形成されている複写
物が得られる。而して、図示の静電複写機における上述
した通りの構成及び作用は、本発明に従って改良された
新規な特徴をなすものではなく、本発明が適用され得る
静電複写機の一例を示すものるすぎず、それ故に、これ
らについての詳細な説明は、本明細書においては省略す
る。When the required number of copy sheets are returned to the copy sheet retransmitting means 120 as described above, the lower movable guide member 98 and the upper movable guide member 100 of the conveyance control means 94 are returned to the lowered position shown by the solid line. Be done. Then, the stop means 124 of the copy paper retransmitting means 120 is positioned at the non-acting position indicated by the chain double-dashed line, and by the action of the feeding roller 126 which is rotationally driven in the direction indicated by the arrow 144, the copy paper retransmitting means 120 is operated. Are sent to the copy paper resupply path 128. The copy paper sent to the copy paper resupply path 128 is
The sheets are advanced one by one through the copy paper re-supplying path 128 and are again supplied to the copy paper conveying path 58. As easily understood by referring to FIG. 1, such a copy sheet is turned upside down by passing through a substantially semicircular copy sheet re-supply path 128, and one side on which an image has already been formed is made a bottom side. In this state, it is supplied to the copy paper conveyance path 58. Next, the copy paper is conveyed through the copy paper conveyance path 58. At this time, in the transfer area 18, the toner image is transferred to the other surface of the copy paper, that is, the upper surface, and the toner image is fixed on the copy paper by the action of the heating and fixing roller pair 88, and thus the image is transferred to the other surface of the copy paper. It is formed. Next, the copy sheet is introduced from the copy sheet conveying path 58 to the copy sheet discharging path 104 through the copy sheet moving path 96 in the conveying control means 94, and is discharged to the tray 106 through the copy sheet discharging path 104. Thus, a copy having an image formed on both sides is obtained. Thus, the above-described configuration and operation of the illustrated electrostatic copying machine do not constitute a novel feature improved in accordance with the present invention, but show an example of an electrostatic copying machine to which the present invention can be applied. Rinse, therefore, a detailed description thereof will be omitted herein.
【００２１】支持枠体構造 第１図と共に第２図を参照して説明すると、上記ハウジ
ング２は、下部支持枠体１４６と上部支持枠体１４８と
から構成されている。上部支持枠体１４８は、支持軸１
５０を介して下部支持枠体１４６に旋回自在に装着され
ており、第１図に図示する作用位置（閉位置）と第２図
に図示する非作用位置（開位置）との間を旋回動せしめ
られる。下部支持枠体１４６に対する上部支持枠体１４
８の装着方式自体は、例えば、特開昭５９−１００４５
９号公報、特開昭５９−１５２４５８号公報又は特開昭
５９−１８８６７０号公報に開示されている如き方式で
よい。 Support Frame Structure Referring to FIG. 2 together with FIG. 1, the housing 2 is composed of a lower support frame 146 and an upper support frame 148. The upper support frame 148 is the support shaft 1
It is rotatably mounted on the lower support frame 146 via 50, and pivots between an operating position (closed position) shown in FIG. 1 and a non-operating position (open position) shown in FIG. Be punished. The upper support frame 14 with respect to the lower support frame 146
The mounting system itself of No. 8 is disclosed in, for example, JP-A-59-10045
No. 9, JP-A-59-152458 or JP-A-59-188670 may be used.
【００２２】第３図を参照して説明すると、下部支持枠
体１４６は、上面が開放せしめられた略箱形状であり、
上部支持枠体１４８は、下面が開放せしめられた略形状
である。下部支持枠体１４６は、その内部に前後方向
（第１図及び第２図において紙面に垂直な方向）に間隔
を置いて実質上鉛直る配設された下部前基板１５２及び
下部後基板１５４を有する。同様に、上部支持枠体１４
８も、その内部に前後方向に間隔を置いて実質上鉛直に
配設された上部前基板１５６及び上部後基板１５８（第
１図及び第２図）を有する。そして、第１図を参照して
説明した種々の構成要素のうちの、第１図に示す一点鎖
線１６０よりも下方に配設されている構成要素は、上記
下部前基板１５２と下部後基板１５４との間に装着され
ており、第１図に示す一点鎖線１６０よりも上方に配設
されている構成要素は、上記上部前基板１５６と上部後
基板１５８との間に配設されている。従って、第１図及
び第２図を参照することによって理解される如く、図示
の具体例においては、複写紙供給径路５６ａ、５６ｂ及
び５６ｃの全体、複写紙搬送経路５８の大部分（更に詳
細には、加熱定着ローラ対８８によって規定される部分
を除く部分）、及び複写紙排出径路１０４は、上部支持
枠体１４８が第１図に図示する作用位置に位置付けられ
ている時に下部支持枠体１４６と上部支持枠体１４８と
の間に規定され、上部支持枠体１４８が第２図に図示す
る非作用位置にせしめられると解放される。図示の具体
例においては、複写紙搬送経路５８における加熱定着ロ
ーラ対８８の上側ローラ８８ａ及びその支持手段は、第
１図に図示する作用位置（閉位置）と第２図に図示する
非作用位置との間を支持軸１６２を中心として旋回自在
に装着されており、従って、上部支持枠体１４８を第２
図に図示する非作用位置にせしめ、次いで上記上側ロー
ラ８８ａ及びその支持手段を第２図に図示する非作用位
置にせしめると、複写紙搬送経路５８はその全体が開放
される。一方、複写紙逆転径路１０８は、上部支持枠体
１４８内に更に詳しくは上部前基板１５６と上部後基板
との間に設けられ、そして、複写紙返送経路１１０、複
写紙再送手段１２０及び複写紙再供給径路１２８は、下
部支持枠体１４６内に、更に詳しくは下部前基板１５２
と下部後基板１５４との間に設けられている。Explaining with reference to FIG. 3, the lower support frame 146 has a substantially box shape with an open upper surface,
The upper support frame 148 has a substantially shape with an open lower surface. The lower support frame body 146 has a lower front substrate 152 and a lower rear substrate 154 arranged therein and arranged substantially vertically in the front-rear direction (direction perpendicular to the paper surface in FIGS. 1 and 2) with a space therebetween. Have. Similarly, the upper support frame 14
8 also has an upper front substrate 156 and an upper rear substrate 158 (FIGS. 1 and 2) which are arranged substantially vertically in the interior thereof at intervals in the front-rear direction. Among the various constituent elements described with reference to FIG. 1, the constituent elements arranged below the dashed-dotted line 160 shown in FIG. 1 are the lower front substrate 152 and the lower rear substrate 154. The components mounted between the upper front substrate 156 and the upper rear substrate 158 are mounted between the upper front substrate 156 and the upper rear substrate 158. Therefore, as will be understood by reference to FIGS. 1 and 2, in the illustrated embodiment, the entire copy paper supply paths 56a, 56b and 56c, and most of the copy paper transport path 58 (more specifically, FIG. Is a portion other than the portion defined by the heating and fixing roller pair 88), and the copy sheet discharge path 104 is lower support frame 146 when the upper support frame 148 is positioned at the operating position shown in FIG. Between the upper support frame body 148 and the upper support frame body 148, and is released when the upper support frame body 148 is brought into the inoperative position shown in FIG. In the illustrated example, the upper roller 88a of the heating and fixing roller pair 88 and its supporting means in the copy paper transport path 58 are in the operating position (closed position) shown in FIG. 1 and the non-operating position shown in FIG. Is mounted so as to be rotatable about the support shaft 162, and therefore, the upper support frame 148 is attached to the second position.
When the upper roller 88a and its supporting means are moved to the non-acting position shown in the figure and then to the non-acting position shown in FIG. 2, the entire copying paper transport path 58 is opened. On the other hand, the copy paper reversing path 108 is provided in the upper support frame 148 more specifically between the upper front substrate 156 and the upper rear substrate, and the copy paper return path 110, the copy paper retransmitting means 120 and the copy paper are provided. The resupply path 128 is provided in the lower support frame 146, and more specifically, the lower front substrate 152.
And the lower rear substrate 154.
【００２３】第１図及び第２図と共に第４図を参照して
説明すると、下部支持枠体１４６の下部前基板１５２に
は、比較的大きな単一の連続して延在する開口１６４が
形成されている。かかる開口１６４は、複写紙返送経路
１１０の大部分、更に詳しくは返送制御機構１１８によ
って規定される部分が存在する領域と共に、複写紙再送
手段１２０のほぼ全体が存在する領域に渡って連続して
延在している。加えて、開口１６４の第１図及び第４図
において右端縁は、複写紙再供給径路１２８に隣接して
いる。従って、上記複写紙返送経路１１０、複写紙再送
手段１２０及び複写紙再供給径路１２８において複写紙
が紙詰りを生じた場合には、上記開口１６４を通して手
を挿入することによって紙詰りした複写紙を充分容易に
除去することができる。複写紙返送経路１１０における
上記返送制御機構１１８は、可動枠体１６６を有する。
かかる可動枠体１１６は、その後端縁に沿って延びる旋
回軸線を中心として、第４図に実線で示す作用位置と第
４図に２点鎖線で示す非作用位置との間を旋回自在に、
下部後基板１５４（第３図）に装着されている。第４図
から明らかな如く、上記開口１６４は、上記作用位置に
位置付けられている時に可動枠体１６６が存在する領域
のみならず、上記非作用位置に位置付けられた時に可動
枠体１６６が存在する領域にも延在している。返送制御
機構１１８における複数個の上側要素（即ち複写紙返送
経路１１０の上側を規定する要素）は、下部支持枠体１
４６の下部前基板１５２及び下部後基板１５４に直接的
に装着されているが、返送制御機構１１８における複数
個の下側要素（即ち複写紙返送経路１１０の上側を規定
する要素）は、上記可動枠体１６６に装着されている。
従って、返送制御機構１１８において複写紙の紙詰りが
発生した場合には、上記可動枠体１６６の前端に形成さ
れている把持部１６８を把持して上記可動枠体１６６を
実線で示す作用位置から２点鎖線で示す非作用位置に移
動せしめて返送制御機構１１８における複写紙返送経路
１１０を開放し、かくして紙詰りした複写紙を充分容易
に除去することができる。Referring to FIG. 4 together with FIGS. 1 and 2, a relatively large single continuous opening 164 is formed in the lower front substrate 152 of the lower support frame 146. Has been done. The opening 164 is continuously formed over a region where most of the copy sheet returning means 110 exists, more specifically, a region defined by the return control mechanism 118, and a region where almost all of the copy sheet retransmitting unit 120 exists. It has been extended. In addition, the right edge of the opening 164 in FIGS. 1 and 4 is adjacent the copy paper refeed path 128. Therefore, when a copy sheet jams in the copy sheet return path 110, the copy sheet retransmitting means 120 and the copy sheet re-supply path 128, the jammed copy sheet is removed by inserting a hand through the opening 164. It can be easily removed. The return control mechanism 118 in the copy sheet return path 110 has a movable frame body 166.
The movable frame 116 is rotatable about a turning axis extending along the rear end edge thereof between a working position shown by a solid line in FIG. 4 and a non-working position shown by a two-dot chain line in FIG.
It is mounted on the lower rear substrate 154 (FIG. 3). As is clear from FIG. 4, the opening 164 exists not only in the region where the movable frame body 166 exists when it is located in the working position, but also when the movable frame body 166 exists in the non-working position. It also extends to the area. The plurality of upper elements (that is, the elements defining the upper side of the copy sheet return path 110) in the return control mechanism 118 are the lower support frame 1.
Although directly attached to the lower front substrate 152 and the lower rear substrate 154 of 46, a plurality of lower elements (that is, elements defining the upper side of the copy sheet return path 110) in the return control mechanism 118 are movable. It is attached to the frame body 166.
Therefore, when a paper jam of copy paper occurs in the return control mechanism 118, the grip portion 168 formed at the front end of the movable frame body 166 is gripped to move the movable frame body 166 from a position indicated by a solid line. The copy paper return path 110 in the return control mechanism 118 is opened by moving it to the non-acting position indicated by the chain double-dashed line, and thus the jammed copy paper can be easily removed.
【００２４】再び第３図を参照して説明すると、下部支
持枠体１４６の前壁は、開閉動自在な下部前カバー部材
１７０によって規定されている。この下部前カバー部材
１７０は、その下端縁に沿って延びる旋回軸線１７２を
中心として下部支持枠体１４６の前面のほぼ全体を覆う
閉位置（第３図に２点鎖線で示す位置）と下部支持枠体
１４６の前面のほぼ全体を露呈せしめる開位置（第３図
に実線で示す位置）との間を旋回自在に、適宜の装着機
構（図示していない）によって装着されている。同様
に、上部支持枠体１４８の前壁の、上端部を除く部分
は、開閉動自在な上部前カバー部材１７４によって規定
されている。この上部前カバー部材１７４は、その下端
縁に沿って延びる旋回軸線１７６を中心として上部支持
枠体１４８の前面の上端部を除く部分を覆う閉位置（第
３図に２点鎖線で示す位置）と上部支持枠体１４８の前
面の上端部を除く部分を露呈せしめる開位置（第３図に
実線で示す位置）との間を旋回自在に、適宜の装着機構
（図示していない）によって装着されている。Referring again to FIG. 3, the front wall of the lower support frame 146 is defined by the lower front cover member 170 which can be opened and closed. The lower front cover member 170 has a closed position (a position indicated by a chain double-dashed line in FIG. 3) that covers almost the entire front surface of the lower support frame 146 around a pivot axis 172 extending along the lower end edge thereof and a lower support. The frame 146 is mounted by an appropriate mounting mechanism (not shown) so as to be rotatable between an open position (a position shown by a solid line in FIG. 3) that exposes almost the entire front surface of the frame 146. Similarly, the portion of the front wall of the upper support frame 148 excluding the upper end is defined by an upper front cover member 174 that can be opened and closed. The upper front cover member 174 is in a closed position (a position indicated by a chain double-dashed line in FIG. 3) that covers a portion of the front surface of the upper support frame 148 excluding the upper end portion around the pivot axis 176 extending along the lower edge of the upper front cover member 174. It is mounted by an appropriate mounting mechanism (not shown) so as to be freely rotatable between an open position (a position shown by a solid line in FIG. 3) which exposes a portion of the front surface of the upper support frame 148 excluding the upper end. ing.
【００２５】ロッキング手段及び検出手段 第３図と共に第５図を参照して説明すると、上部支持枠
体１４８における上部前基板１５６には、そこから前方
へ延びる支持板１７８が固定されている。そして、この
支持板１７８の片面には第１の検出要素１８０が固定さ
れ、他面には第２の検出要素１８２が固定されている。
第１の検出要素１８０は検出アーム１８４を有するリミ
ットスイッチでよく、同様に、第２の検出要素１８２は
検出アーム１８６を有するリミットスイッチでよい。上
部支持枠体１４８における上部前基板１５６には、更
に、上記支持板１７８の下方を上部前基板１５６から前
方に延びる板状部材から成る拘束部材１８８も固定され
ている。この拘束部材１８８の先端部には、上記第１の
検出要素１８０の検出アーム１８４の先端部の下方に位
置する開口１９０が形成されている。 一方、下部支持
枠体１４６における開閉動自在な下部前カバー部材１７
０の裏面には、部片１９２が固定されている。第３図に
明確に図示する如く、この部片１９２の自由端は、下部
前カバー部材１７０の上壁部に形成された切欠き１９３
を通って、下部前カバー部材１７０の上端を越えて突出
している。かかる部片１９２は、後の説明から明らかに
なる如く、上記拘束部材１８８と協働してロッキング手
段を構成する被拘束部材として機能すると共に、上記第
１の検出要素１８０と協働して第１の検出手段を構成す
る被検出要素として機能する。また、上部支持枠体１４
８における開閉動自在な上部前カバー部材１７４の裏面
には、部片１９４が固定されている。かかる部片１９４
は、後の説明から明らかになる如く、上記第２の検出要
素１８２と協働して第２の検出手段を構成する被検出要
素として機能する。 Locking Means and Detecting Means Referring to FIG. 5 together with FIG. 3, a supporting plate 178 extending forward from the upper front substrate 156 in the upper supporting frame 148 is fixed. The first detection element 180 is fixed to one surface of the support plate 178, and the second detection element 182 is fixed to the other surface.
The first detection element 180 may be a limit switch having a detection arm 184 and likewise the second detection element 182 may be a limit switch having a detection arm 186. A restraint member 188, which is a plate-like member extending below the support plate 178 and forward from the upper front substrate 156, is also fixed to the upper front substrate 156 of the upper support frame 148. An opening 190 located below the tip of the detection arm 184 of the first detection element 180 is formed at the tip of the restraining member 188. On the other hand, the lower front cover member 17 of the lower support frame body 146, which can be freely opened and closed.
A piece 192 is fixed to the back surface of 0. As shown clearly in FIG. 3, the free end of this piece 192 has a notch 193 formed in the upper wall of the lower front cover member 170.
Through, and projects beyond the upper end of the lower front cover member 170. As will be apparent from the description below, such a piece 192 functions as a restrained member that constitutes a locking means in cooperation with the restraining member 188, and also cooperates with the first detecting element 180 in the first detecting element 180. It functions as a detected element that constitutes the first detection means. In addition, the upper support frame 14
A piece 194 is fixed to the back surface of the upper front cover member 174 which can be opened and closed in FIG. Such a piece 194
As will be apparent from the description below, the above functions as a detected element that cooperates with the second detecting element 182 and constitutes the second detecting means.
【００２６】第３図及び第５図を参照することによって
理解される如く、下部支持枠体１４６における下部前カ
バー部材１７０が第３図に２点鎖線で示す閉位置にせし
められ、次いで上部支持枠体１４８が作用位置（第１
図）にせしめられると、上記部片１９２の先端部が上記
拘束部材１８８の開口１９０に受入れられる。かくする
と、部片１９２の前方への移動が拘束部材１８８によっ
て拘束され、従って下部前カバー部材１７０が第３図に
２点鎖線で示す閉位置にロックされる。即ち、図示の静
電複写機においては、上部支持枠体１４８が作用位置
（第１図）にある時には、拘束部材１８８と部片１９２
との協働によって下部前カバー部材１７０が閉位置にロ
ックされ、下部前カバー部材１７０を第３図に実線で示
す開位置に開動せしめることができない。上部支持枠体
１４８を第３図に図示する非作用位置にせしめると、拘
束部材１８８が部片１９２から離脱し、かくして下部前
カバー部材１７０を第３図に実線で示す開位置に開動せ
しめることが可能になる。下部支持枠体１４６における
下部前カバー部材１７０が第３図に２点鎖線で示す閉位
置にせしめられ、次いで上部支持枠体１４８が作用位置
（第１図）にせしめられると、上述した如く部片１９２
の先端部が拘束部材１８８の開口１９０に受入れられて
下部前カバー部材１７０が閉位置にロックされることに
加えて、第５図から理解される如く、部片１９２の先端
が上記第１の検出要素１８０の検出アーム１８４を押圧
し、これによって第１の検出要素１８０がＯＮに切換え
られる。また、上部支持枠体１４８における上部前カバ
ー部材１７４が第３図に２点鎖線で示す閉位置にせしめ
られると、部片１９４の先端が上記第２の検出要素１８
２の検出アーム１８６を押圧し、これによって第２の検
出要素１８２がＯＮに切換えられる。第１の検出要素１
８０及び第２の検出要素１８２は、所謂安全スイッチと
して機能し、第１の検出要素１８０及び第２の検出要素
１８２の双方がＯＮの時に、静電複写機の作動が許容さ
れる。 所望ならば、被拘束部材と被検出要素とを夫々
別個の部片から構成することができる。また、上部支持
枠体１４８の上部前基板１５６に部片１９２を固定し、
下部支持枠体１４６の下部前カバー部材１７０に第１の
検出要素１８０と拘束部材１８８を固定することがでい
る。更に、上部支持枠体１４８の上部前基板１５６に部
片１９４を固定し、上部支持枠体１４８の上部前カバー
部材１７４に第２の検出要素１８２を固定することがで
きる。As can be seen by referring to FIGS. 3 and 5, the lower front cover member 170 on the lower support frame 146 is brought to the closed position shown in phantom in FIG. The frame 148 is in the operating position (first
(Fig.), The tip of the piece 192 is received in the opening 190 of the restraining member 188. Thus, the forward movement of the piece 192 is restrained by the restraining member 188, so that the lower front cover member 170 is locked in the closed position shown by the chain double-dashed line in FIG. That is, in the illustrated electrostatic copying machine, when the upper support frame 148 is in the operating position (FIG. 1), the restraining member 188 and the piece 192 are provided.
The lower front cover member 170 is locked in the closed position by co-operation with, and the lower front cover member 170 cannot be moved to the open position shown by the solid line in FIG. When the upper support frame 148 is moved to the non-acting position shown in FIG. 3, the restraining member 188 is separated from the piece 192, and thus the lower front cover member 170 is moved to the open position shown by the solid line in FIG. Will be possible. When the lower front cover member 170 of the lower support frame body 146 is moved to the closed position shown by the chain double-dashed line in FIG. 3, and then the upper support frame body 148 is moved to the operating position (FIG. 1), the parts are moved as described above. Piece 192
5 is received in the opening 190 of the restraining member 188 and the lower front cover member 170 is locked in the closed position, the tip of the piece 192 has the above-mentioned first position. The detection arm 184 of the detection element 180 is pressed, whereby the first detection element 180 is switched on. When the upper front cover member 174 of the upper support frame 148 is moved to the closed position shown by the chain double-dashed line in FIG. 3, the tip of the piece 194 is moved to the second detection element 18 described above.
The second detection arm 186 is pressed, whereby the second detection element 182 is switched on. First detection element 1
The 80 and the second detection element 182 function as a so-called safety switch, and when both the first detection element 180 and the second detection element 182 are ON, the operation of the electrostatic copying machine is permitted. If desired, the constrained member and the detected element can each be composed of separate pieces. Further, the piece 192 is fixed to the upper front substrate 156 of the upper support frame 148,
The first detection element 180 and the restraining member 188 can be fixed to the lower front cover member 170 of the lower support frame body 146. Furthermore, the piece 194 can be fixed to the upper front substrate 156 of the upper support frame 148, and the second detection element 182 can be fixed to the upper front cover member 174 of the upper support frame 148.
【００２７】紙詰り処理手順 第１図、第２図及び第３図を参照して説明すると、複写
紙の片面のみに画像を形成するモードで静電複写機が作
動中、複写紙供給径路５６ａ、５６ｂ及び５６ｃ、複写
紙搬送経路５８或いは複写紙排出径路１０４において複
写紙の紙詰りが発生して静電複写機の作動が停止された
場合には、上部支持枠体１４８を第２図及び第３図に示
す非作用位置にせしめる。かくすると、複写紙供給径路
５６ａ、５６ｂ及び５６ｃの全体、複写紙搬送経路５８
の大部分（更に詳細には、加熱定着ローラ対８８によっ
て規定される部分を除く部分）、及び複写紙排出径路１
０４の全体が開放される。次いで、必要に応じて、加熱
定着ローラ対８８の上側ローラ８８ａ及びその支持手段
を第２図に示す非作用位置にせしめ、かくして複写紙搬
送経路５８の全体を開放する。次いで、複写紙供給径路
５６ａ、５６ｂ及び５６ｃ、複写紙搬送経路５８或いは
複写紙排出径路１０４に存在する複写紙を除去する。 Paper jam processing procedure : Referring to FIGS. 1, 2, and 3, the copying paper supply path 56a is operated while the electrostatic copying machine is operating in a mode in which an image is formed on only one side of the copying paper. , 56b and 56c, the copy paper transport path 58 or the copy paper discharge path 104, and when the operation of the electrostatic copying machine is stopped due to paper jam of the copy paper, the upper support frame 148 is moved to the position shown in FIG. Set it to the non-acting position shown in FIG. As a result, the entire copy paper supply paths 56a, 56b and 56c and the copy paper transport path 58 are provided.
(More specifically, a portion other than the portion defined by the heat fixing roller pair 88), and the copy paper discharge path 1
The whole 04 is opened. Then, if necessary, the upper roller 88a of the heating and fixing roller pair 88 and its supporting means are brought to the non-acting position shown in FIG. 2, and thus the entire copy paper conveyance path 58 is opened. Next, the copy paper existing in the copy paper supply paths 56a, 56b and 56c, the copy paper transport path 58 or the copy paper discharge path 104 is removed.
【００２８】次に、複写紙の両面に画像を形成するモー
ドで静電複写機が作動中に、複写紙の紙詰りが発生して
静電複写機の作動が停止された場合の処理について説明
する。この場合には、次の事実が注目されるべきであ
る。即ち、同一の原稿から複数枚の複写物を得る所謂複
数枚複写の場合、例えば複写紙返送経路１１０又は複写
紙再送手段１２０において複写紙が紙詰りした時には、
紙詰りした複写紙が最終枚複写のための複写紙でない限
り、複写紙供給径路５６ａ、５６ｂ及び５６ｃ、複写紙
搬送経路５８或いは複写紙逆転径路１０８には、引続く
複写紙が存在しており、かかる複写紙も除去することが
必要である。而して、図示の静電複写機においては、下
部支持枠体１４６内に配設されている複写紙返送経路１
１０、複写紙再送手段１２０或いは複写紙再供給径路１
２８に存在する除去すべき複写紙を除去せんとして、下
部前カバー部材１７０を第３図に実線で示す開位置にせ
しめんとしても、上部支持枠体１４８が第１図に図示す
る作用位置にある限り、上述したロッキング手段（即ち
拘束部材１８８及び部片１９２）の作用によって下部前
カバー部材１７０の開動が阻止される。従って、下部前
カバー部材１７０の開動に先立って、上部支持枠体１４
８を第２図及び第３図に図示する非作用位置にせしめる
ことが必要である。次いで、必要に応じて、加熱定着ロ
ーラ対８８の上側ローラ８８ａ及びその支持手段第２図
に示す非作用位置にせしめる。そして、複写紙供給径路
５６ａ、５６ｂ及び５６ｃ、複写紙搬送経路５８或いは
複写紙逆転径路１０８に存在する複写紙を除去する。複
写紙逆転径路１０８に存在する複写紙は、上部支持枠体
１４８の開放されている下面から手を挿入することによ
って充分容易に除去することができる。しかる後に、下
部前カバー部材１７０を第３図に実線で示す開位置にせ
しめる。次いで、必要に応じて、返送制御機構１１８の
可動枠体１６６を第４図に２点鎖線で示す非作用位置に
せしめる。下部前カバー部材１７０を開位置にせしめる
と、下部前基板１５２に形成されている上記開口１６４
が露呈され、従って、上記開口１６４を通して手を挿入
することによって、複写紙返送経路１１０、複写紙再送
手段１２０或いは複写紙再供給径路１２８に存在する除
去すべき複写紙を充分容易に除去することができる。か
ような次第であるので、図示の静電複写機においては、
例えば、複写紙返送経路１１０或いは複写紙再送手段１
２０のみから複写紙を除去し、複写紙供給径路５６ａ、
５６ｂ及び５６ｃ、複写紙搬送経路５８或いは複写紙逆
転径路１０８に除去すべき複写紙を不注意に残留せしめ
て静電複写機の作動を再開し、かくして種々の不都合を
生ぜしめてしまうことが充分確実に防止される。Next, a description will be given of the processing when the electrostatic copying machine is operated in the mode of forming images on both sides of the copying paper and the copying paper is jammed and the operation of the electrostatic copying machine is stopped. To do. In this case, the following facts should be noted. That is, in the case of so-called multiple copy in which multiple copies are obtained from the same original, for example, when the copy paper is jammed in the copy paper return path 110 or the copy paper retransmitting means 120,
As long as the jammed copy paper is not the copy paper for the final copy, there are subsequent copy papers in the copy paper supply paths 56a, 56b and 56c, the copy paper transport path 58, or the copy paper reverse path 108. It is also necessary to remove such copy paper. Thus, in the illustrated electrostatic copying machine, the copy paper return path 1 disposed in the lower support frame body 146.
10, copy paper retransmitting means 120 or copy paper resupply path 1
Even if the lower front cover member 170 is moved to the open position shown by the solid line in FIG. 3 to remove the copy paper to be removed in 28, the upper support frame 148 is moved to the working position shown in FIG. To some extent, the action of the locking means described above (ie the restraining member 188 and the piece 192) prevents the lower front cover member 170 from opening. Therefore, prior to the opening of the lower front cover member 170, the upper support frame 14
It is necessary to bring 8 into the inoperative position shown in FIGS. 2 and 3. Then, if necessary, the upper roller 88a of the heat fixing roller pair 88 and its supporting means are brought to the non-acting position shown in FIG. Then, the copy paper existing in the copy paper supply paths 56a, 56b and 56c, the copy paper transport path 58 or the copy paper reverse rotation path 108 is removed. The copy paper existing in the copy paper reversing path 108 can be removed sufficiently easily by inserting a hand from the open lower surface of the upper support frame 148. Thereafter, the lower front cover member 170 is moved to the open position shown by the solid line in FIG. Then, if necessary, the movable frame body 166 of the return control mechanism 118 is set to the non-acting position shown by the chain double-dashed line in FIG. When the lower front cover member 170 is moved to the open position, the opening 164 formed in the lower front substrate 152 is opened.
Therefore, by inserting a hand through the opening 164, the copy paper to be removed existing in the copy paper return path 110, the copy paper retransmitting means 120 or the copy paper resupply path 128 can be easily removed. You can Therefore, in the illustrated electrostatic copying machine,
For example, the copy sheet return path 110 or the copy sheet retransmitting means 1
The copy paper is removed from only 20 and the copy paper supply path 56a,
It is sufficiently certain that the copy papers 56b and 56c, the copy paper transport path 58, or the copy paper reverse path 108 are inadvertently left behind to restart the operation of the electrostatic copying machine, thus causing various inconveniences. To be prevented.
【００２９】搬送制御手段 次に、第６図乃至第８図を参照して、搬送制御手段９４
の構成について詳述する。上述した如く、図示の搬送制
御手段９４は、下側可動案内部材９８と上側可動案内部
材１００とを含んでいる。第８図に最も明確に図示する
如く、下側可動案内部材９８は支持軸１９６を有し、こ
の支持軸１９６には軸線方向に適宜の間隔を置いて複数
個の略三角形状の下側案内部片１９８が一体に形成され
ている。支持軸１９６の両端部は、夫々、下部支持枠体
１４６における下部前基板１５２及び下部後基板１５４
に旋回自在に装着され、かくして下側可動案内部材９８
が下部支持枠体１４６の所定位置に旋回自在に装着され
る（第３図も参照されたい。）支持軸１９６には連結片
２００（第６図及び第７図）も一体に形成されている。
そして、この連結片２００には、電磁ソレノイド２０２
でよい作動手段が連結されている。更に詳しくは、電磁
ソレノイド２０２の本体は下部支持枠体１４６（第７
図）内の所定位置に固定されており、その鉄心２０４が
連結ピン２０６によって上記連結片２００に旋回自在に
連結されている。電磁ソレノイド２０２が除勢されてい
る時には、下側可動案内部材９８は、第６図に実線で示
す位置即ち下降位置に位置付けられている。電磁ソレノ
イド２０２が付勢されると、下側可動案内部材９８は、
第６図に２点鎖線で示す位置即ち上昇位置に旋回せしめ
られる。下側可動案内部材９８には、更に、上記複数個
の下側案内部片１９８のうちの両側に位置する下側案内
部片１９８の各々の外側面から外方に突出する突起２０
８も一体に形成されている。かかる突起２０８は、後の
説明から明らかになる如く、上側可動案内部材１００に
作用する当接手段を構成する。一方、上側可動案内部材
１００は、長手方向に適宜の間隔を置いて複数個の略三
角形状の上側案内部片２１０が一体に形成されている細
長い板状部材２１２を有する。上側案内部片２１０の各
々は、上記下側可動案内部材９８における複数個の下側
案内部片１９８の各々に対応して位置する。上記板状部
材２１２の両端には、略矩形の部片２１４が一体に形成
されており、かかる部片２１４の各々の外面には、外方
へ延びる短軸２１６が一体に形成されている。上記部片
２１４は、上記下側可動案内部材９８における突起即ち
当接手段２０８と協働する被当接手段を構成する。上記
短軸２１６の各々は、上部支持枠体１４８における上部
前基板１５６（第３図）及び上部後基板１５８（第７
図）に旋回自在に装着され、かくして上側可動案内部材
１００が上部支持枠体１４８の所定位置に旋回自在に装
着される。上側可動案内部材１００における上記複数個
の上側案内部片２１０のうちの両側に位置する上側案内
部片２１０の各々の後端部外面には、ピン２１８が一体
に形成されている。これに対応して、上部支持枠体１４
８における上部前基板１５６（第３図）及び上部後基板
１５８の各々の内面にもピン２２０が固定されている。
そして、ピン２１８の各々のピン２２０の各々との間に
は、引張ばね２２２でよい弾性手段が配設されている。
かかる引張ばね２２２は、上側可動案内部材１００を第
６図において反時計方向に弾性的に偏倚する。所望なら
ば、上側可動案内部材１００の重量自体によって、上側
可動案内部材１００が第６図において反時計方向に偏倚
せしめられるようになすこともできる。更に、図示の具
体例においては、上部支持枠体１４８内の所定位置に
は、板状部材から構成された制限手段２２４が固定され
ている。 Transport Control Means Next, with reference to FIGS. 6 to 8, the transport control means 94.
Will be described in detail. As described above, the illustrated conveyance control means 94 includes the lower movable guide member 98 and the upper movable guide member 100. As shown most clearly in FIG. 8, the lower movable guide member 98 has a support shaft 196, and the support shaft 196 is provided with a plurality of substantially triangular lower guides at appropriate intervals in the axial direction. The piece 198 is integrally formed. Both ends of the support shaft 196 are respectively provided on the lower front substrate 152 and the lower rear substrate 154 of the lower support frame 146.
Rotatably mounted on the lower movable guide member 98.
Is rotatably mounted at a predetermined position of the lower support frame 146 (see also FIG. 3), and a connecting piece 200 (FIGS. 6 and 7) is also integrally formed with the support shaft 196. .
The connecting piece 200 includes an electromagnetic solenoid 202.
Activating means are connected. More specifically, the main body of the electromagnetic solenoid 202 has a lower support frame 146 (7th
The core 204 is fixed to a predetermined position in the drawing) and is pivotally connected to the connecting piece 200 by a connecting pin 206. When the electromagnetic solenoid 202 is deenergized, the lower movable guide member 98 is positioned at the position shown by the solid line in FIG. 6, that is, the lowered position. When the electromagnetic solenoid 202 is energized, the lower movable guide member 98 is
It is swung to a position shown by a chain double-dashed line in FIG. 6, that is, a raised position. The lower movable guide member 98 is further provided with a projection 20 protruding outward from the outer surface of each of the lower guide piece 198 located on both sides of the plurality of lower guide piece 198.
8 is also integrally formed. The projection 208 constitutes a contact means that acts on the upper movable guide member 100, as will be apparent from the description below. On the other hand, the upper movable guide member 100 has an elongated plate member 212 integrally formed with a plurality of substantially triangular upper guide pieces 210 at appropriate intervals in the longitudinal direction. Each of the upper guide pieces 210 is positioned corresponding to each of the plurality of lower guide pieces 198 of the lower movable guide member 98. Substantially rectangular parts 214 are integrally formed on both ends of the plate member 212, and a short shaft 216 extending outward is integrally formed on the outer surface of each of the parts 214. The piece 214 constitutes an abutted member that cooperates with the protrusion of the lower movable guide member 98, that is, the abutting member 208. Each of the short shafts 216 has an upper front substrate 156 (FIG. 3) and an upper rear substrate 158 (seventh portion) in the upper support frame 148.
In the figure, the upper movable guide member 100 is pivotally mounted at a predetermined position on the upper support frame 148. A pin 218 is integrally formed on the outer surface of the rear end of each of the upper guide pieces 210 on both sides of the plurality of upper guide pieces 210 of the upper movable guide member 100. Corresponding to this, the upper support frame 14
The pins 220 are also fixed to the inner surfaces of the upper front substrate 156 (FIG. 3) and the upper rear substrate 158 in FIG.
An elastic means, which may be a tension spring 222, is disposed between each of the pins 218 and each of the pins 220.
The tension spring 222 elastically biases the upper movable guide member 100 counterclockwise in FIG. If desired, the weight of the upper movable guide member 100 itself may cause the upper movable guide member 100 to be biased counterclockwise in FIG. Further, in the illustrated specific example, a limiting means 224 formed of a plate-like member is fixed at a predetermined position in the upper support frame 148.
【００３０】上記の通りの搬送制御手段９４において
は、上部支持枠体１４８が第１図に示す作用位置に位置
せしめられている状態において、電磁ソレノイド２０２
が除勢されている時には、上述した如く下側可動案内部
材９８は第６図に実線で示す下降位置に位置付けられて
いる。引張ばね２２２によって第６図において反時計方
向に弾性的に偏倚されている上側可動案内部材１００
は、その部片即ち被当接手段２１４が下側可動案内部材
９８の突起即ち当接手段２０８に当接せしめられ、かく
して第６図に実線で示す位置即ち下降位置に位置付けら
れる。第６図と共に第１図を参照して説明すると、下側
可動案内部材９８と上側可動案内部材１００とが実線で
示す下降位置に位置付けられている時には、下側可動案
内部材９８における下側案内部片１９８の上縁と上側可
動案内部材１００における上側案内部片２１０の下縁と
の間に規定される複写紙移動径路９６は、複写紙搬送経
路５８と複写紙排出径路１０４とを相互に連通せしめ
る。In the transport control means 94 as described above, the electromagnetic solenoid 202 is placed in a state where the upper support frame 148 is positioned at the working position shown in FIG.
As described above, the lower movable guide member 98 is positioned at the lowered position shown by the solid line in FIG. The upper movable guide member 100 elastically biased counterclockwise in FIG. 6 by the tension spring 222.
The part thereof, that is, the contacted means 214, is brought into contact with the projection or contact means 208 of the lower movable guide member 98, and thus is positioned at the position shown by the solid line in FIG. 6, that is, the lowered position. Referring to FIG. 1 together with FIG. 6, when the lower movable guide member 98 and the upper movable guide member 100 are positioned at the lowered position shown by the solid line, the lower guide of the lower movable guide member 98 is shown. A copy paper movement path 96 defined between the upper edge of the piece 198 and the lower edge of the upper guide piece 210 of the upper movable guide member 100 mutually connects the copy paper transport path 58 and the copy paper discharge path 104. I can communicate.
【００３１】一方、電磁ソレノイド２０２が付勢される
と、上述した如く下側可動案内部材９８は第６図におい
て時計方向に旋回せしめられて第６図に２点鎖線で示す
上昇位置に位置付けられる。かくすると、下側可動案内
部材９８における突起即ち当接手段２０８及びこれと協
働する上側可動案内部材１００における部片即ち被当接
手段２１４により、上側可動案内部材１００も引張ばね
２２２の弾性偏倚作用に抗して第６図において時計方向
に旋回せしめられて、第６図に２点鎖線で示す位置即ち
上昇位置に位置付けられる。第６図と共に第１図を参照
して説明すると、下側可動案内部材９８と上側可動案内
部材１００とが２点鎖線で示す上昇位置に位置付けられ
ると、下側可動案内部材９８における下側案内部片１９
８の上縁と上側可動案内部材１００における上側案内部
片２１０の下縁との間に規定される複写紙移動径路９６
は、複写紙搬送経路５８と複写紙逆転径路１０８とを相
互に連通せしめると共に、複写紙逆転径路１０８と複写
紙返送経路１１０とを相互に連通せしめる。On the other hand, when the electromagnetic solenoid 202 is urged, the lower movable guide member 98 is swung clockwise in FIG. 6 and positioned at the raised position shown by the chain double-dashed line in FIG. 6 as described above. . Thus, the upper movable guide member 100 is also elastically biased by the tension spring 222 by the projection or contact means 208 of the lower movable guide member 98 and the piece or contacted means 214 of the upper movable guide member 100 cooperating therewith. It is swung clockwise in FIG. 6 against the action and positioned in the position shown by the chain double-dashed line in FIG. 6, that is, in the raised position. Describing with reference to FIG. 1 together with FIG. 6, when the lower movable guide member 98 and the upper movable guide member 100 are positioned at the raised position shown by the chain double-dashed line, the lower guide of the lower movable guide member 98 will be described. Piece 19
8 and the lower edge of the upper guide piece 210 of the upper movable guide member 100, the copy paper movement path 96 is defined.
Makes the copy paper conveyance path 58 and the copy paper reverse rotation path 108 communicate with each other, and also makes the copy paper reverse rotation path 108 and the copy paper return path 110 communicate with each other.
【００３２】下側可動案内部材９８は下部支持枠体１４
６（第７図）に装着されているのに対して、上側可動案
内部材１００は上部支持枠体１４８（第７図）に装着さ
れている。それ故に、第７図に図示する如く、上部支持
枠体１４８が第１図に示す作用位置から第２図及び第３
図に図示する非作用位置に向けて移動せしめられると、
上側可動案内部材１００が下側可動案内部材９８から上
方に離隔し、かくして両者間に規定されている複写紙移
動径路９６（第６図）が開放される。上側可動案内部材
９８が下側可動案内部材１００から上方へ離隔せしめら
れると、上側可動案内部材１００における部片即ち被当
接手段２１４が下側可動案内部材９８における突起即ち
当接手段２０８から離脱する。従って、引張ばね２２２
の弾性偏倚作用によって、上側可動案内部材１００は第
７図において反時計方向に旋回せしめられる。しかしな
がら、上側可動案内部材１００が幾分反時計方向に旋回
せしめられると、上側可動案内部材１００における上側
案内部片２１０の１個又は複数個の後端部上縁が上部支
持枠体１４８に固定された制限手段２２４に当接し、か
くして上側可動案内部材１００が更に第７図において反
時計方向に旋回することが阻止される。所望ならば、上
部支持枠体１４８が非作用位置に位置付けられており且
つ電磁ソレノイド２０２が除勢されている状態におい
て、上側可動案内部材１００における上側案内部片２１
０の後端部上縁が上記制限手段２２４に当接し、これに
よって上側可動案内部材１００が第６図に実線で示す下
降位置に位置決めされ、この時下側可動案内部材９８に
おける突起即ち当接手段２０８と上側可動案内部材１０
０における部片即ち被当接手段２１４との間には若干の
間隙が存在するようになすこともできる。また、上側可
動案内部材１００を上昇位置に偏倚し、下側可動案内部
材９８が下降位置にせしめられると、当接手段及び被当
接手段の作用によって上側可動案内部材１００が下降位
置にせしめられるようになすこともできる。そしてま
た、図示の具体例とは逆に、上側可動案内部材１００に
電磁ソレノイドの如き作動手段を付設し、上側可動案内
部材１００が上昇位置（又は下降位置）から下降位置
（又は上昇位置）にせしめられると、上昇位置（又は下
降位置）に偏倚されていた下側可動案内部材９８が、当
接手段及び被当接手段の作用によって下降位置（又は上
昇位置）にせしめられるようになすこともできる。The lower movable guide member 98 is the lower support frame body 14.
6 (FIG. 7), the upper movable guide member 100 is mounted on the upper support frame 148 (FIG. 7). Therefore, as shown in FIG. 7, the upper support frame body 148 moves from the operating position shown in FIG.
When moved toward the non-acting position shown in the figure,
The upper movable guide member 100 is separated upward from the lower movable guide member 98, and thus the copy paper movement path 96 (FIG. 6) defined between them is opened. When the upper movable guide member 98 is separated upward from the lower movable guide member 100, the piece of the upper movable guide member 100, that is, the contacted means 214 is separated from the protrusion of the lower movable guide member 98, that is, the contact means 208. To do. Therefore, the tension spring 222
Due to the elastic biasing action of, the upper movable guide member 100 is swung counterclockwise in FIG. However, when the upper movable guide member 100 is pivoted in a counterclockwise direction, one or more rear end upper edges of the upper guide portion pieces 210 of the upper movable guide member 100 are fixed to the upper support frame body 148. The upper movable guide member 100 is further prevented from pivoting counterclockwise in FIG. 7 by abutting against the restricted means 224. If desired, the upper guide piece 21 of the upper movable guide member 100 with the upper support frame 148 in the non-acting position and the electromagnetic solenoid 202 deenergized.
The upper edge of the rear end portion of 0 abuts on the limiting means 224, whereby the upper movable guide member 100 is positioned at the lowered position shown by the solid line in FIG. 6, and at this time, the projection or contact of the lower movable guide member 98. Means 208 and upper movable guide member 10
It is also possible that there is a slight gap between the piece 0 and the contacted means 214. Further, when the upper movable guide member 100 is biased to the raised position and the lower movable guide member 98 is moved to the lowered position, the upper movable guide member 100 is moved to the lowered position by the action of the contact means and the contacted means. You can also do so. Contrary to the illustrated example, the upper movable guide member 100 is provided with an operating means such as an electromagnetic solenoid so that the upper movable guide member 100 moves from the raised position (or lowered position) to the lowered position (or raised position). The lower movable guide member 98, which is biased to the raised position (or the lowered position) when it is biased, may be biased to the lowered position (or the raised position) by the action of the contact means and the contacted means. it can.
【００３３】以上、添付図面を参照して本発明に従って
構成された静電複写機の一具体例について詳細に説明し
たが、本発明はかかる具体例に限定されるものではな
く、本発明の範囲を逸脱することなく種々の変形乃至修
正が可能であることは多言を要しない。The specific example of the electrostatic copying machine constructed according to the present invention has been described in detail with reference to the accompanying drawings. However, the present invention is not limited to the specific example, and the scope of the present invention is not limited thereto. It is not necessary to say that various changes and modifications can be made without departing from the above.
【００３４】[0034]
【発明の効果】本発明による静電複写機は、下部支持枠
体と、作用位置と非作用位置との間を旋回自在に該下部
支持枠体に装着された上部支持枠体を具備し、複写紙搬
送経路の下流端に隣接して配設された搬送制御手段を構
成する下側可動案内部材は下部支持枠体に装着され、上
側可動案内部材は上部支持枠体に装着されているととも
に、上記上側可動案内部材と下側可動案内部材とのいず
れか一方は下降位置と上昇位置とのいずれか一方に偏倚
されており、上側可動案内部材と下側可動案内部材との
他方には、これを下降位置と上昇位置とに選択的に位置
付ける作動手段が付設されており、上側可動案内部材と
下側可動案内部材との他方には当接手段が形成され、上
側可動案内部材と下側可動案内部材との一方には被当接
手段が形成されており、上側可動案内部材と下側可動案
内部材との他方が下降位置と上昇位置との一方から他方
に移動せしめられると、当接手段が被当接手段に作用し
て上側可動案内部材と下側可動案内部材との一方を下降
位置と上昇位置との他方に強制的に移動せしめるように
構成したので、上部支持枠体を非作用位置にせしめる
と、下側可動案内部材と上側可動案内部材との間の複写
紙移動径路が開放されるにもかかわらず、下側可動案内
部材と上側可動案内部材との下降位置と上昇位置への位
置付けが、単一の作動手段によって遂行することができ
る。The electrostatic copying machine according to the present invention comprises a lower supporting frame and an upper supporting frame mounted on the lower supporting frame so as to be rotatable between an operating position and a non-operating position. The lower movable guide member, which constitutes the conveyance control means disposed adjacent to the downstream end of the copy paper conveyance path, is mounted on the lower support frame body, and the upper movable guide member is mounted on the upper support frame body. , One of the upper movable guide member and the lower movable guide member is biased to one of the lowered position and the raised position, the other of the upper movable guide member and the lower movable guide member, An actuating means for selectively positioning it in the lowered position and the raised position is provided, and an abutting means is formed on the other of the upper movable guide member and the lower movable guide member to form the upper movable guide member and the lower movable guide member. A contacted means is formed on one side of the movable guide member. When the other of the upper movable guide member and the lower movable guide member is moved from one of the lowered position and the raised position to the other, the contact means acts on the contacted means and the upper movable guide member and the lower movable guide member. Since one of the side movable guide members is forcibly moved to the other of the lowered position and the raised position, when the upper support frame is moved to the non-acting position, the lower movable guide member and the upper movable guide member are moved. The lower movable guide member and the upper movable guide member can be positioned in the lowered position and the raised position, despite the opening of the copy paper movement path between the two. .
【図１】本発明に従って構成された静電複写機の主要構
成要素を簡略に示す断面図。FIG. 1 is a sectional view schematically showing main components of an electrostatic copying machine configured according to the present invention.
【図２】第１図の静電複写機における上部支持枠体を非
作用位置にせしめた状態を示す、第１図と同様の断面
図。2 is a sectional view similar to FIG. 1, showing a state in which an upper support frame body in the electrostatic copying machine of FIG. 1 is in a non-operating position.
【図３】第１図の静電複写機における支持枠体構造を、
上部支持枠体を非作用位置にせしめた状態で示す簡略斜
視図。FIG. 3 shows a support frame structure in the electrostatic copying machine of FIG.
FIG. 3 is a simplified perspective view showing the upper support frame body in a non-acting position.
【図４】第１図の静電複写機における下部支持枠体の下
部前基板の一部を示す部分正面図。4 is a partial front view showing a part of a lower front substrate of a lower support frame in the electrostatic copying machine of FIG.
【図５】第１図の静電複写機におけるロッキング手段及
び検出手段を示す部分斜視図。5 is a partial perspective view showing locking means and detection means in the electrostatic copying machine of FIG.
【図６】第１図の静電複写機における搬送制御手段を示
す部分断面図。FIG. 6 is a partial cross-sectional view showing a conveyance control means in the electrostatic copying machine of FIG.
【図７】第１図の静電複写機における搬送制御手段を、
上部支持枠体を作用位置から非作用位置に向けて幾分移
動せしめた状態で示す、第６図と同様の部分断面図。FIG. 7 shows a conveyance control means in the electrostatic copying machine of FIG.
FIG. 7 is a partial cross-sectional view similar to FIG. 6, showing a state in which the upper support frame has been moved somewhat from the operating position to the non-operating position.
【図８】第１図の静電複写機における搬送制御手段を示
す部分斜視図。8 is a partial perspective view showing a conveyance control means in the electrostatic copying machine of FIG.
２：ハウジング ８：回転ドラム ４８：複写紙供給手段 ５６ａ、５６ｂ、５６ｃ：複写紙供給径路 ５８：複写紙搬送経路 ９４：搬送制御手段 ９６：複写紙移動径路 ９８：下側可動案内部材 １００：上側可動案内部材 １０４：複写紙排出径路 １０８：複写紙逆転径路 １１０：複写紙返送経路 １１８：返送制御機構 １２０：複写紙再送手段 １２８：複写紙再供給径路 １４６：下部支持枠体 １４８：上部支持枠体 １５２：下部前基板 １５４：下部後基板 １５６：下部前基板 １５８：上部後基板 １６４：下部前基板の開口 １７０：下部前カバー部材 １７４：上部前カバー部材 １８０：第１の検出要素（検出手段） １８２・・第２の掲出要素（検出手段） １８８：拘束部材（ロッキング手段） １９２：部片（被拘束手段及び被検出要素） １９４：部片（被検出要素） １９６：支持軸 １９８：下側案内部片 ２００：連結片 ２０２：電磁ソレノイド（作動手段） ２０８：突起（当接手段） ２１０：上側案内部片 ２１４：部片（被当接手段） ２２２：引張ばね（弾性手段） ２２４：制限手段 2: housing 8: rotating drum 48: copy paper supply means 56a, 56b, 56c: copy paper supply path 58: copy paper transport path 94: transfer control means 96: copy paper movement path 98: lower movable guide member 100: upper side Movable guide member 104: Copy paper discharge path 108: Copy paper reverse rotation path 110: Copy paper return path 118: Return control mechanism 120: Copy paper resending means 128: Copy paper resupply path 146: Lower support frame 148: Upper support frame Body 152: Lower front substrate 154: Lower rear substrate 156: Lower front substrate 158: Upper rear substrate 164: Lower front substrate opening 170: Lower front cover member 174: Upper front cover member 180: First detection element (detection means) 182. Second posting element (detection means) 188: Restraining member (locking means) 192: Piece (restrained means and detected element) 194: Piece (detected element) 196: Support shaft 198: Lower guide piece 200: Connecting piece 202: Electromagnetic solenoid (operating means) 208: Protrusion (contact means) 210: Upper guide piece 214: Piece (Abutting means) 222: Tension spring (elastic means) 224: Limiting means
Claims (6)
との間を旋回自在に該下部支持枠体に装着された上部支
持枠体と、複写紙搬送経路と、該複写紙搬送経路にシー
ト状複写紙を供給するための複写紙供給手段と、該複写
紙搬送経路の下流端に隣接して配設された搬送制御手段
と、該搬送制御手段の下流端に隣接する上流端から延び
る複写紙排出径路と、該搬送制御手段の下流端に隣接す
る上流端から延びる複写紙逆転径路と、該搬送制御手段
の上流端に隣接する上流端から延びる複写紙返送経路と
を具備し、 該複写紙搬送経路の少なくとも大部分は、該上部支持枠
体が該作用位置に位置付けられている時に該下部支持枠
体と該上部支持枠体との間に規定されていて、該上部支
持枠体を該非作用位置にせしめると開放され、 該複写紙逆転径路は、該上部支持枠体内に設けられてお
り、 該複写紙返送経路は、該下部支持枠体内に設けられてお
り、 該搬送制御手段は、両者間に複写紙移動径路を規定する
下側可動案内部材及び上側可動案内部材を含み、該下側
可動案内部材及び該上側可動案内部材は、該複写紙搬送
経路の下流端と該複写紙排出径路の上流端とを連通せし
める上昇位置と、該複写紙搬送経路の下流端と該複写紙
逆転径路の上流端とを連通せしめるための下降位置とに
選択的に位置付けられ、 該複写紙供給手段から該複写紙搬送経路に供給された複
写紙が、該複写紙搬送経路を通して搬送される間に、複
写紙の片面に画像が形成され、 そして、片面に画像が形成された複写紙は、該下降位置
に位置付けられている該下側可動案内部材と該上側可動
案内部材との間の複写紙移動径路を通して該複写紙排出
径路に導入され、次いで該複写紙排出径路を通して排出
され、 或いは、片面に画像が形成された複写紙は、該上昇位置
に位置付けられている該下側可動案内部材と該上側可動
案内部材との間の複写紙移動径路を通して該複写紙逆転
径路に導入され、次いで複写紙の後端が該複写紙搬送経
路の下流端を通過した後に複写紙の移動方向に逆転され
て、該複写紙返送経路に導入され、該複写紙返送経路を
通して返送されて該複写紙搬送経路に再供給され、該複
写紙搬送経路を通して再搬送される間に複写紙の他面に
画像が形成され、しかる後に該下降位置に位置付けられ
ている該下側可動案内部材と該上側可動案内部材との間
の複写紙移動径路を通して該複写紙排出径路に導入さ
れ、次いで該複写紙排出径路を通して排出される型の静
電複写機において；該下側可動案内部材は該下部支持枠
体に装着され、該上側可動案内部材は該上部支持枠体に
装着されていて、該上部支持枠体が該非作用位置にせし
められると、該下側可動案内部材と該上側可動案内部材
との間の該複写紙移動径路が開放され、 該上側可動案内部材と該下側可動案内部材とのいずれか
一方は該下降位置と該上昇位置とのいずれか一方に偏倚
されており、 該上側可動案内部材と該下側可動案内部材との他方に
は、これを該下降位置と該上昇位置とに選択的に位置付
ける作動手段が付設されており、 該上側可動案内部材と該下側可動案内部材との該他方に
は当接手段が形成され、該上側可動案内部材と該下側可
動案内部材との該一方には被当接手段が形成されてお
り、該上側可動案内部材と該下側可動案内部材との該他
方が該下降位置と該上昇位置との該一方から他方に移動
せしめられると、該当接手段が該被当接手段に作用して
該上側可動案内部材と該下側可動案内部材との該一方を
該下降位置と該上昇位置との該他方に強制的に移動せし
める、ことを特徴とする静電複写機。1. A lower supporting frame, an upper supporting frame mounted on the lower supporting frame so as to be rotatable between an operating position and a non-operating position, a copy sheet conveying path, and the copy sheet conveying path. From the upstream end adjacent to the downstream end of the transfer control means, and the transfer control means disposed adjacent to the downstream end of the copy paper transfer path. A copy paper discharge path, a copy paper reverse path extending from an upstream end adjacent to the downstream end of the transport control means, and a copy paper return path extending from an upstream end adjacent to the upstream end of the transport control means. At least most of the copy paper transport path is defined between the lower support frame and the upper support frame when the upper support frame is positioned at the operating position, and the upper support frame is When the body is moved to the non-acting position, it is released, Is provided in the upper support frame, the copy paper return path is provided in the lower support frame, and the transport control means is a lower movable part that defines a copy paper movement path therebetween. A lower movable guide member and an upper movable guide member, wherein the lower movable guide member and the upper movable guide member connect the downstream end of the copy paper transport path and the upstream end of the copy paper discharge path to a raised position; The copy paper fed to the copy paper feed path from the copy paper feed means is selectively positioned at a descending position for connecting the downstream end of the copy paper feed path and the upstream end of the copy paper reverse rotation path. An image is formed on one side of the copy sheet while being conveyed through the copy sheet conveying path, and the copy sheet having the image formed on one side is positioned at the lower position of the lower movable guide member. Between the upper movable guide member and The copy paper introduced into the copy paper discharge path through the moving path and then discharged through the copy paper discharge path, or the copy paper having an image formed on one side thereof is provided with the lower movable guide member positioned in the raised position. It is introduced into the copy paper reversing path through the copy paper moving path between the upper movable guide member, and then the trailing edge of the copy paper is reversed in the moving direction of the copy paper after passing the downstream end of the copy paper conveying path. Is introduced into the copy paper return path, returned through the copy paper return path, re-supplied to the copy paper transport path, and an image is formed on the other surface of the copy paper while being re-transferred through the copy paper transport path. Formed and then introduced into the copy paper discharge path through a copy paper movement path between the lower movable guide member and the upper movable guide member, which are positioned in the lowered position, and then the copy paper discharge path. Through In a discharge type electrostatic copying machine; the lower movable guide member is attached to the lower support frame body, the upper movable guide member is attached to the upper support frame body, and the upper support frame body is When set to the non-acting position, the copy paper movement path between the lower movable guide member and the upper movable guide member is opened, and either the upper movable guide member or the lower movable guide member is opened. Is biased to one of the lowered position and the raised position, and the other of the upper movable guide member and the lower movable guide member is selectively placed between the lowered position and the raised position. And an abutting means is formed on the other of the upper movable guide member and the lower movable guide member, and the upper movable guide member and the lower movable guide member are connected to each other. An abutted means is formed on one side of the upper movable guide member. When the other of the lower movable guide member is moved from the one of the lowered position and the raised position to the other, the contact means acts on the contacted means and the upper movable guide member and An electrostatic copying machine characterized in that one of the lower movable guide member is forcibly moved to the other of the lowered position and the raised position.
材との該他方が該下降位置と該上昇位置との該一方にあ
る時に、該当接手段が該被当接手段に当接することによ
り、該上側可動案内部材と該下側可動案内部材との該一
方が該下降位置と該上昇位置との該一方に制限される、
請求項１記載の静電複写機。2. When the other of the upper movable guide member and the lower movable guide member is in the one of the lowered position and the raised position, the corresponding contact means contacts the contacted means. By the one of the upper movable guide member and the lower movable guide member is limited to the one of the lowered position and the raised position,
The electrostatic copying machine according to claim 1.
ずれか一方には制御手段が設けられており、該上部支持
枠体が該非作用位置にせしめられても、該上側可動案内
部材と該下側可動案内部材との該一方が該制限手段に当
接することにより、該上側可動案内部材と該下側可動案
内部材との該一方が所定制限位置を越えて移動せしめら
れることが阻止される、請求項２記載の静電複写機。3. A control means is provided on either one of the upper support frame and the lower support frame, and the upper movable guide is provided even when the upper support frame is set to the non-acting position. The one of the upper movable guide member and the lower movable guide member may be moved beyond a predetermined limit position by contacting the one of the member and the lower movable guide member with the limiting means. The electrostatographic copying machine of claim 2, wherein the electrostatographic copying machine is blocked.
材との該一方と該上部支持枠体と該下部支持枠体との該
一方との間には、該上側可動案内部材を下降方向に弾性
的に偏倚せしめる弾性手段が設けられている、請求項１
記載の静電複写機。4. The upper movable guide member is lowered between the one of the upper movable guide member and the lower movable guide member and the one of the upper support frame body and the lower support frame body. Elastic means for elastically biasing in a direction is provided.
The described electrostatic copying machine.
れており、該電磁ソレノイドが除勢されている時は該上
側可動案内部材と該下側可動案内部材との該他方が該下
降位置と該上昇位置との該一方に位置付けられ、該電磁
ソレノイドが付勢されると該上側可動案内部材と該下側
可動案内部材との該他方が該下降位置と該上昇位置との
該他方に位置付けられる、請求項１記載の静電電複写
機。5. The actuating means is composed of an electromagnetic solenoid, and when the electromagnetic solenoid is deenergized, the other of the upper movable guide member and the lower movable guide member has the lower position and the lower position. When the electromagnetic solenoid is energized, the other of the upper movable guide member and the lower movable guide member is positioned at the other of the lowered position and the raised position. The electrostatic copying machine according to claim 1.
該作用位置に位置付けられている時に該下部支持枠体と
該上部支持枠体との間に規定されていて、該上部支持枠
体を該非作用位置にせしめると開放される、請求項１記
載の静電複写機。6. The copy paper discharge path is defined between the lower support frame and the upper support frame when the upper support frame is positioned at the operating position, and the upper support frame is defined by the upper support frame. The electrostatic copying machine according to claim 1, wherein the electrostatic copying machine is opened when the frame is brought to the non-acting position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11743894A JP2520088B2 (en) | 1994-05-09 | 1994-05-09 | Electrostatic copier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11743894A JP2520088B2 (en) | 1994-05-09 | 1994-05-09 | Electrostatic copier |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60149176A Division JPH0694315B2 (en) | 1984-10-30 | 1985-07-09 | Electrostatic copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07133042A JPH07133042A (en) | 1995-05-23 |
| JP2520088B2 true JP2520088B2 (en) | 1996-07-31 |
Family
ID=14711657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11743894A Expired - Lifetime JP2520088B2 (en) | 1994-05-09 | 1994-05-09 | Electrostatic copier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520088B2 (en) |
-
1994
- 1994-05-09 JP JP11743894A patent/JP2520088B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07133042A (en) | 1995-05-23 |
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