JPS60100152A - Both side copying machine - Google Patents

Both side copying machine

Info

Publication number
JPS60100152A
JPS60100152A JP58208497A JP20849783A JPS60100152A JP S60100152 A JPS60100152 A JP S60100152A JP 58208497 A JP58208497 A JP 58208497A JP 20849783 A JP20849783 A JP 20849783A JP S60100152 A JPS60100152 A JP S60100152A
Authority
JP
Japan
Prior art keywords
transfer paper
paper
copying
sided
double
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP58208497A
Other languages
Japanese (ja)
Inventor
Tamaki Kaneko
環 金子
Yasuhiro Takahashi
高橋 靖弘
Tsugio Okuzawa
奥沢 次男
Isao Nakamura
功 中村
Koji Ehata
江畑 耕司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP58208497A priority Critical patent/JPS60100152A/en
Publication of JPS60100152A publication Critical patent/JPS60100152A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/22Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/23Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
    • G03G15/231Arrangements for copying on both sides of a recording or image-receiving material
    • G03G15/238Arrangements for copying on both sides of a recording or image-receiving material using more than one reusable electrographic recording member, e.g. single pass duplex copiers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Counters In Electrophotography And Two-Sided Copying (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To continue operation of one of two drums even when paper jamming occurs, and to enhance copying speed by providing the separate photosensitive drums on the upstream and downstream sides of a transfer paper inversion means for making copies, respectively, on the surface and the reverse face of the paper. CONSTITUTION:A toner image is transferred from a photosensitive drum 1a to the surface of a transfer paper 7a, and the transferred image is fixed with the first fixing roller 12a. The paper 7a is turned in the course with a triple roller mechanism 25, and received on an inversion route 23. It is turned inside out, a toner image is transferred on the reverse face, and fixed with the second fixing roller 12b. Even when paper jamming occurs in the image forming device in the second stage, the operation of the device on the first stage is continued by receiving the paper 7a on the intermediate tray 24 in place of the route 23.

Description

【発明の詳細な説明】 技術分野 本発明は、両面複写機に関する。[Detailed description of the invention] Technical field The present invention relates to a double-sided copying machine.

従来技術 従来、両面複写機としては種々のものがあるが、一般的
には特公昭49−36264号公報に示される如く、1
個の感光体ドラムを用いているものであり、転写紙の搬
送路が両面用1−レイ等を含んでループ状に形成されて
いる。この結果、転写紙がジャムする確率が高くトラブ
ルが多発するとともに1両面コピーの所要時間が長いも
のである。
PRIOR ART Conventionally, there are various types of double-sided copying machines, but generally speaking, as shown in Japanese Patent Publication No. 49-36264,
The transfer paper transport path is formed in a loop shape including a double-sided 1-lay. As a result, there is a high probability that the transfer paper will jam, leading to frequent troubles, and the time required for single-sided copying is long.

この点、米国特許第3536398号や特開昭56−1
61559号公報に示されるように2個の感光体ドラム
を用いた両面複写機もある。しかし、この方式で3表面
コピーと裏面コピーとの画像の向きを合わせるために、
光学系に複雑な工夫を要する等の充分なものではない。
In this regard, U.S. Patent No. 3,536,398 and
There is also a double-sided copying machine using two photosensitive drums, as shown in Japanese Patent No. 61559. However, in order to match the image orientation of the 3 front and back copies using this method,
It is not sufficient as it requires complicated improvements to the optical system.

しかして、本出願人により、2個の感光体ドラムを用い
、各々の感光体ドラムに表面画像と裏面画像とを光学系
により形成し、一方の感光体ドラムの表面画像を転写紙
に転写して表面コピーを作成し、この転写紙を転写紙反
転装置により反転させつつ転写紙搬送路を通り他方の感
光体ドラム側に送り、そこで裏面画像を転写して裏面コ
ピーを作成するという前・後段の連係動作により両面コ
ピーを完成させる新規な両面複写機が提案されている。
Therefore, the present applicant used two photoreceptor drums, formed a front image and a back image on each photoreceptor drum using an optical system, and transferred the front image of one of the photoreceptor drums to a transfer paper. A front-side copy is created using a transfer paper reversing device, and this transfer paper is sent through a transfer paper transport path to the other photoreceptor drum side while being reversed by a transfer paper reversing device, where the back-side image is transferred and a back-side copy is created. A new double-sided copying machine has been proposed that completes double-sided copying by the linked operation of .

これによれば、転写紙搬送系が単純・短縮化され、ジャ
ムが減少し、両面コピー速度が遅くなるものである。
According to this, the transfer paper conveyance system is simplified and shortened, jams are reduced, and double-sided copying speed is reduced.

ところが、このような両面複写機であってもジャムの発
生は皆無ではなく、ジャム発生時の対策が必要である。
However, even in such a double-sided copying machine, jams do not occur at all, and countermeasures must be taken when jams occur.

目的 本発明は、このような点に鑑みなされたもので、本出願
人提案の両面複写機を更に改良し、ジャムが発生しても
効率よくその処理を行なうことができる両面複写機を得
ることを目的とする。
Purpose The present invention was made in view of the above points, and it is an object of the present invention to further improve the double-sided copying machine proposed by the applicant and to obtain a double-sided copying machine that can efficiently handle jams even if they occur. With the goal.

構成 本発明の一実施例を図面に基づいて説明する。composition An embodiment of the present invention will be described based on the drawings.

まず、画像記録体となる2個の感光体ドラムla。First, there are two photosensitive drums la that serve as image recording bodies.

1bが前・後段に並置されている。これらの感光体ドラ
ムla、lbに対し、電子写真プロセスに従い、帯電チ
ャージャ2a、2’b、イレーザ3a。
1b are juxtaposed in the front and rear rows. Chargers 2a, 2'b and eraser 3a are applied to these photosensitive drums la, lb according to an electrophotographic process.

3b、コンタクトガラス4a、4b上の原稿を露光結像
する光学系5ae5b、現像装置6a、6b、転写紙7
a、7bの給紙部8a、8b、分離転写チャージャ9a
、9b、クリーニング装置10a、10b、除電装置1
1a、、11b、定着装[12a、12bが設けられて
いる。ここで、コンタクトガラス4a、4b上には自動
原稿搬送装置13a、13bが設けられている。この自
動原稿搬送装置13a、13bは原稿台14a、14b
上にセットされた原稿15a、15bを搬送する搬送ベ
ルト16a、16bを主とするものであり、リサイクル
パス17a、17bも備えている。
3b, an optical system 5ae5b that exposes and forms an image of the original on contact glasses 4a and 4b, developing devices 6a and 6b, and transfer paper 7
a, 7b paper feed sections 8a, 8b, separation transfer charger 9a
, 9b, cleaning devices 10a, 10b, static eliminator 1
1a, 11b, and fixing devices [12a, 12b are provided. Here, automatic document feeders 13a and 13b are provided on contact glasses 4a and 4b. These automatic document feeders 13a and 13b are connected to document tables 14a and 14b.
It mainly consists of conveyor belts 16a and 16b for conveying original documents 15a and 15b set thereon, and also includes recycling paths 17a and 17b.

このようにして前段画像形成手段18aと後段画像形成
手段18bとが形成されている。
In this way, the front-stage image forming means 18a and the rear-stage image forming means 18b are formed.

このような前・後段画像形成手段18a、18bは転写
紙搬送路20と原稿搬送路21とにより結合されている
。まず、転写紙搬送路20は感光体ドラムla、lb間
を結んで転写紙7a(i−前段側から後段側へ搬送させ
るもので略直線状に形成されており、その途中に転写紙
反転装置1122を有する。この転写紙反転装置22は
1枚の転写紙7aだけを反転させて直ちに後段側へ搬送
させうる転写紙反転搬送装置23とその下方に位置して
複数枚の転写紙7aを収納でき、その後反転給紙させう
る転写紙反転中間トレイ24とにより構成されている。
The front and rear image forming means 18a and 18b are connected by a transfer paper transport path 20 and an original transport path 21. First, the transfer paper conveyance path 20 connects the photoreceptor drums la and lb to convey the transfer paper 7a (i) from the front stage side to the rear stage side, and is formed in a substantially straight line. 1122. This transfer paper reversing device 22 has a transfer paper reversing and conveying device 23 that can invert only one sheet of transfer paper 7a and immediately transport it to the subsequent stage side, and a transfer paper reversing and conveying device 23 that is located below it and stores a plurality of sheets of transfer paper 7a. The transfer paper reversing intermediate tray 24 is configured such that the transfer paper can be reversed and then the transfer paper can be reversely fed.

転写紙反転搬送装置23は周知のように三本ローラ対2
5と反転路26とにより構成されており、図示の如く三
本ローラ対25の上側2つの従ローラが反転路26を開
放していれば転写紙7aが反転路26に入り込んで反転
・搬送されるが1反転路26を閉じれば転写紙7aは反
転されることなく単に通過することになるものである。
As is well known, the transfer paper reversing conveyance device 23 includes a pair of three rollers 2.
5 and a reversing path 26, and as shown in the figure, if the upper two subordinate rollers of the three roller pair 25 open the reversing path 26, the transfer paper 7a enters the reversing path 26 and is reversed and conveyed. However, if the first reversing path 26 is closed, the transfer paper 7a simply passes through without being reversed.

転写紙反転中間トレイ24には仕切り加圧板27と給紙
ローラ28とが備えられている。そして。
The transfer paper reversing intermediate tray 24 is provided with a partition pressure plate 27 and a paper feed roller 28 . and.

転写紙反転搬送装置23側と転写紙反転中間トレイ24
側とを選択的に切換える切換爪29が設けられている。
Transfer paper reversal conveyance device 23 side and transfer paper reversal intermediate tray 24
A switching claw 29 is provided to selectively switch between the two sides.

更に、転写紙反転搬送装置23の後段には反転された転
写紙7aを収納しうる第二中間トレイ30が給紙ローラ
31とともに転写紙搬送路20に対し並列的に設けられ
ており、両者を選択切換えする切換爪32が設けられて
いる。一方、原稿搬送路21も自動原稿搬送装置13a
Furthermore, a second intermediate tray 30 that can accommodate the reversed transfer paper 7a is provided downstream of the transfer paper reversal conveyance device 23, and is provided in parallel with the transfer paper conveyance path 20 together with a paper feed roller 31, so that both A switching claw 32 for switching selection is provided. On the other hand, the document conveyance path 21 is also connected to the automatic document conveyance device 13a.
.

13b間を結んで原稿15aを前段側から後段側へ搬送
させるもので略直線状に形成されており、その途中に原
稿反転装置35が設けられている。
13b to transport the original 15a from the front side to the rear side, and is formed in a substantially straight line, and a document reversing device 35 is provided along the way.

この原稿反転装置35は転写紙反転搬送送置23と同様
に三本ローラ対36と反転路37とがらなり、反転路3
7は原稿手差しを兼用している。ここで、自動原稿搬送
装置13aの後段には原稿搬送路21側とリサイクルパ
ス17’a側とを選択切換えする切換爪38が設けられ
、更に、自動原稿搬送装置13a用に設けられた排紙ト
レイ39側とリサイクルパス17a側とを選択切換えす
る切換爪40が設けられている。
This document reversing device 35 consists of a three-roller pair 36 and a reversing path 37, similar to the transfer paper reversing conveyance station 23.
7 also serves as a manual manuscript feeder. Here, a switching claw 38 for selectively switching between the document transport path 21 side and the recycle path 17'a side is provided at the rear stage of the automatic document feeder 13a. A switching claw 40 is provided for selectively switching between the tray 39 side and the recycling path 17a side.

ついで、感光体ドラムlb側の定着送置12bの後段に
は三本ローラ対5oと反転路51とともに紙折りストッ
パー52を有する反転排出装置53が設けられ、その後
段には切換爪54により選択される排紙トレイ55とソ
ータ56とが設けられている。又、自動原稿搬送装置1
3bの後段には三本ローラ対57と反転路58とを有す
る反転排出装置59を介して排紙トレイ60が設けられ
ている。61は反転排出送置59側とリサイクルパス1
7b側とを選択切換えする切換爪である。
Next, a reversing and discharging device 53 having a paper folding stopper 52 as well as a three-roller pair 5o and a reversing path 51 is provided at the rear stage of the fixing feed station 12b on the side of the photosensitive drum lb. A paper discharge tray 55 and a sorter 56 are provided. Also, automatic document feeder 1
A paper discharge tray 60 is provided downstream of the paper tray 3b via a reversing and discharging device 59 having a pair of three rollers 57 and a reversing path 58. 61 is the reversing discharge transfer station 59 side and recycling path 1
This is a switching claw that selectively switches between the 7b side and the 7b side.

なお、70は給紙部8aと並列的に設けられた手差し給
紙部である。
Note that 70 is a manual paper feed section provided in parallel with the paper feed section 8a.

このような構成において、本実施例の両面複写機によれ
ば各種態様に対処できる。ここに、スイッチ類、制御回
路等は特に図示しないが、各種モードは自由に設定でき
るものである。
With such a configuration, the double-sided copying machine of this embodiment can handle various aspects. Although switches, control circuits, etc. are not particularly illustrated here, various modes can be set freely.

まず、両面原稿1枚から1枚の両面コピーを得る1−1
両面コピーモード時を考える。このとき、原稿15aを
原稿台14a上にセラ1へする。しかして、コピーを開
始させるとこの原稿15aが給紙され搬送ベルh 16
 aによりコンタクトガラス4a上に送られ停止する。
First, obtain one double-sided copy from one double-sided original 1-1
Consider the case of double-sided copy mode. At this time, the original 15a is placed on the original platen 14a and transferred to the camera 1. When copying is started, this original 15a is fed and transferred to the conveyor bell h16.
a, it is sent onto the contact glass 4a and stopped.

そこで、光学系5aがコンタクトガラス4a上の原稿1
5aの表面を露光スキャニングして回転中の感光体ドラ
ムla上に潜像を形成する。この潜像は現像装置6aに
より現像された後、給紙部8a側から所定タイミングで
給紙された転写紙7aに分離転写チャージャ9aの作用
により転写される。そして、定着装置12aを通過して
転写紙7a/\の表面コピーが完了する。このようにし
て表面コピーが完了すると。
Therefore, the optical system 5a detects the document 1 on the contact glass 4a.
A latent image is formed on the rotating photosensitive drum la by exposing and scanning the surface of the photosensitive drum 5a. After this latent image is developed by the developing device 6a, it is transferred to the transfer paper 7a fed at a predetermined timing from the paper feed section 8a side by the action of the separation transfer charger 9a. Then, it passes through the fixing device 12a and the front side copying of the transfer paper 7a/\ is completed. Once the surface copy is completed in this way.

コンタクl−ガラス4a上の原1i!li I 5 a
は搬送ベルト16aにより原稿反転装置35側へ搬送さ
れ、この原稿反転装置35で反転されて裏面側を下にし
て自動原稿搬送装置13a側へ向がい、その搬送ベルト
16bによりコンタクトガラス4b上にセットされる。
Contact l-Hara 1i on glass 4a! li I 5 a
is conveyed to the document reversing device 35 side by the conveyor belt 16a, is reversed by the document reversing device 35, faces toward the automatic document conveyor 13a side with the back side facing down, and is set on the contact glass 4b by the conveyor belt 16b. be done.

同時に、自動原稿搬送装置13aで側では次の原稿15
aがコンタクトガラス4a上にセットされる。一方、表
面コピー済みの転写紙7aは定着装置12aから転写紙
反転搬送装置23へ送られ、未コピーの裏面側が」二に
なるように反転されて転写紙搬送路20を通り感光体ト
ラム1bに対し待機状態となる。そこで、この感光体ド
ラム1b側において裏面コピーが行なわれる(この時、
感光体ドラムla側では次の原稿の表面コピーが行なわ
れる)。即ち、コンタクトガラス4b上にセットされた
原稿15a!面側が光学系5bにより露光スキャニング
されて感光体ドラムlb上に潜像が形成され、現像・転
写・定着プロセスに従い表面コピー済み転写紙7aの裏
面に裏面コピーが形成されることになる。そして、原稿
15a、両面コピー済みの転写紙7aは排紙トレイ60
,55等に排紙される(必要に応じて反転されたり、ソ
ータ56が選択される)。
At the same time, the next document 15 is transferred to the automatic document feeder 13a.
a is set on the contact glass 4a. On the other hand, the transfer paper 7a on which the front surface has been copied is sent from the fixing device 12a to the transfer paper reversing conveyance device 23, where it is reversed so that the uncopied back side is facing upward, and passes through the transfer paper conveyance path 20 to the photoreceptor tram 1b. On the other hand, it is in a standby state. Therefore, backside copying is performed on the photosensitive drum 1b side (at this time,
On the photosensitive drum la side, the front side of the next document is copied). That is, the original 15a set on the contact glass 4b! The front side is exposed and scanned by the optical system 5b to form a latent image on the photoreceptor drum lb, and a back side copy is formed on the back side of the front side copied transfer paper 7a according to the development, transfer and fixing process. The original 15a and the transfer paper 7a on which both sides have been copied are placed in a paper output tray 60.
, 55, etc. (it is reversed or the sorter 56 is selected as necessary).

次に、同じく両面原稿−両面コピーモードであるが、両
面原稿1枚からリピート設定された所定枚数の両面コピ
ーを得るリピート両面コピーモード時を考える。基本的
には前述した1−1両面コピーモード時と同様であるが
、切換爪29が切換わり転写紙反転搬送装置23に代わ
って転写紙反転中間トレイ24が選択される。まず、自
動原稿搬送装置13aによりコンタクl−ガラス4a上
に給送セラ1−された原稿15aにつき感光体ドラムl
a側でリピート枚数分の複写動作が繰返されて表面コピ
ーが作成される。表面コピー済みの転写紙7aは順次転
写紙反転中間トレイ24に排紙されて一時収納される。
Next, consider a repeat duplex copy mode in which a predetermined number of double-sided copies, which are set to repeat, are made from one double-sided original, although this mode is also a double-sided original-duplex copy mode. Basically, it is the same as in the 1-1 double-sided copy mode described above, but the switching claw 29 is switched and the transfer paper reversing intermediate tray 24 is selected instead of the transfer paper reversing conveyance device 23. First, the photosensitive drum 1 is attached to the document 15a that is fed onto the contact glass 4a by the automatic document feeder 13a.
On side a, the copying operation is repeated for the number of repeat sheets to create front side copies. The transfer paper 7a on which the front side has been copied is sequentially discharged to the transfer paper reversing intermediate tray 24 and temporarily stored therein.

そして、リピート枚数分の表面コピーが終了すると、コ
ンタクトガラス4a上の原稿15aは原稿反転装置35
により反転されつつコンタクトガラス4b上に搬送セッ
トされる。一方、転写紙反転中間トレイ24中又はその
直前搬送路中には排紙枚数検知手段が備えられており、
リピート枚数分の転写紙7aの収納が検知されると、仕
切り加圧板27が給紙ローラ28側へ切換わり、感光体
ドラムIb側への給紙待機状態となる。しかして、コン
タクトガラス4b上にセットされた原稿15aにつき感
光体ドラムlb側で裏面コピーが行なわれることになり
、表面コピー済みの転写紙7aは中間トレイ24がら給
紙ローラ28により反転状態で1枚ずつ順に給紙され、
両面コピーが完了する。
When the front side copying for the number of repeat sheets is completed, the original 15a on the contact glass 4a is transferred to the original reversing device 35.
The contact glass 4b is conveyed and set on the contact glass 4b while being inverted. On the other hand, a means for detecting the number of discharged sheets is provided in the transfer paper reversing intermediate tray 24 or in the conveyance path just before the transfer paper reversing intermediate tray 24,
When the storage of the transfer paper 7a corresponding to the number of repeat sheets is detected, the partition pressure plate 27 is switched to the paper feed roller 28 side, and the paper is in a standby state to be fed to the photosensitive drum Ib side. As a result, the reverse side of the original 15a set on the contact glass 4b is copied on the photosensitive drum lb side, and the transfer paper 7a on which the front side has been copied is transferred from the intermediate tray 24 by the paper feed roller 28 in an inverted state. Paper is fed one by one,
Double-sided copying is completed.

又1両面コピーモードであるが、片面原稿から両面コピ
ーを得る場合を考える。この場合にもl−1両面コピー
モードとリピート両面コピーモードとがあるが、前者の
場合には転写紙反転搬送装置23が選択され、後者の場
合には転写紙反転中間トレイ24が選択される。一方、
原稿側につぃては2つの方式を採りうる。まず、全ての
原稿を自動原稿搬送装置13aの原稿台14a上にセッ
トし、奇数番目(表面用)の原稿15aにつき感光体ド
ラムla側で表面コピーが終了した後、このコンタク1
−ガラス4a上の奇数番目の原稿15aを原稿搬送路2
1−コンタクトガラス4bを通して直ちに排紙させる一
方、原稿台14a上の次の偶数番目(裏面用)の原稿1
5aをコンタクトガラス4a−原稿搬送路21を通過さ
せてコンタクトガラス4b上に搬送セットして裏面コピ
ーに供するようにする方式がある。即ち、原稿反転装置
35は非作動状態となる。又、原稿を最初から表面用と
裏面用とに分け、表面用は原稿15aとして原稿台14
b上にセットし、裏面用は原稿15bとして原稿台14
b上にセットし、各々の自動原稿搬送装置13a、13
bを別個に動作させてもよい。この時、原稿搬送路21
は閉じられており1表面コピーに供した原稿15aは排
紙トレイ39に排紙される。
In the single-sided copy mode, consider the case where a double-sided copy is obtained from a single-sided original. In this case as well, there is an l-1 double-sided copy mode and a repeat double-sided copy mode, but in the former case, the transfer paper reversal conveyance device 23 is selected, and in the latter case, the transfer paper reversal intermediate tray 24 is selected. . on the other hand,
On the manuscript side, two methods can be adopted. First, all originals are set on the original platen 14a of the automatic document feeder 13a, and after the front side copy is completed on the photosensitive drum la side for the odd-numbered (front side) original 15a, this contact 1
- Move the odd-numbered original 15a on the glass 4a to the original transport path 2.
1-While the paper is immediately ejected through the contact glass 4b, the next even-numbered (back side) original 1 on the original platen 14a is
There is a method in which the original document 5a is passed through the contact glass 4a and the original conveyance path 21, conveyed and set on the contact glass 4b, and used for backside copying. That is, the document reversing device 35 becomes inactive. Also, from the beginning, the original is divided into one for the front side and one for the back side, and the one for the front side is placed on the document table 14 as the original 15a.
b, and the back side is placed on the document table 14 as the document 15b.
b, and each automatic document feeder 13a, 13
b may be operated separately. At this time, the document transport path 21
is closed, and the document 15a subjected to first-side copying is discharged to the paper discharge tray 39.

いずれにしても、このように両面コピーモードにあって
は、前段画像形成手段]、 8 aが表面コピーモード
を作成し、後段画像形成手段18bが裏面コピーを作成
して両面コピーを完成するものである。この場合、転写
紙7aは略直線状で短い転写紙搬送路20により感光体
ドラム1a側から感光体ドラムlb側へ搬送されるため
、転写紙ジャムの発生確率が低くなり、コピー速度も向
」ユするものである。これは原稿側でも同様であり、自
動原稿搬送送置13a、13b間を結ぶ原稿搬送路21
が略直線状で短いため、原稿ジャムが減少する。又、転
写紙7aが表面コピー後、転写紙反転装置23により反
転されて感光体ドラムjb側へ搬送されるため、感光体
ドラム1aへ向けて給紙される場合と同等であり、光学
系5a、5b等の複写プロセス構成要素の配置等を感光
体ドラムla、lb双方とも全く同じにすることができ
る。
In any case, in this double-sided copy mode, the front-stage image forming means 8a creates the front-side copy mode, and the rear-stage image forming means 18b creates the back-side copy to complete the double-sided copy. It is. In this case, since the transfer paper 7a is conveyed from the photoreceptor drum 1a side to the photoreceptor drum lb side by the substantially straight and short transfer paper conveyance path 20, the probability of occurrence of a transfer paper jam is lowered, and the copying speed is also improved. It is something to do. This is the same on the document side, and the document conveyance path 21 that connects the automatic document conveyance and feeding stations 13a and 13b
Since it is substantially straight and short, document jams are reduced. Furthermore, after the front surface copying of the transfer paper 7a is performed, the transfer paper 7a is reversed by the transfer paper reversing device 23 and conveyed to the photoconductor drum jb side, which is equivalent to the case where the paper is fed toward the photoconductor drum 1a. , 5b and the like can be made exactly the same on both the photosensitive drums la and lb.

従って、従来の如く1画像の向きを合わせる等、光学系
に複雑な工夫をする必要がなく、単純化できる。又、こ
の結果、原稿も単純に前段側から後段側に流す方式を採
用でき、自動原稿搬送装置13a、13bの利用により
、大量の両面コピー処理を自動的かつ短時間で行なうこ
とができるものである。
Therefore, there is no need to make complicated improvements to the optical system, such as adjusting the orientation of one image, as in the past, and the system can be simplified. Furthermore, as a result, it is possible to adopt a method in which originals are simply passed from the front side to the rear side, and by using the automatic document feeders 13a and 13b, it is possible to automatically perform a large amount of double-sided copy processing in a short time. be.

、しかして、このような両面コピー処理時に、後段画像
形成手段18b側でジャムが発生した場合を考える。こ
のとき、後段画像形成手段18bにおけるジャムセンザ
ーの検知によりこの後段画像形成手段18b側による裏
面コピー動作は停止し、ジャム紙を取除くジャム処理を
要することになる。
Therefore, consider a case where a jam occurs on the rear image forming means 18b side during such double-sided copying processing. At this time, the back side copying operation by the rear image forming means 18b is stopped due to the detection of the jam sensor in the rear image forming means 18b, and a jam processing to remove the jammed paper is required.

しかしながら、前段画像形成手段+8aはそのコピー動
作を停止せず、表面コピー動作が継続される。このため
、転写紙反転装置22として転写紙反転搬送装置23が
選択されて両面コピー動作が行なわれていたとしても、
ジャム検知に基づき切換爪29が切換り転写紙反転中間
1へレイ24が選択され、前段画像形成手段18aによ
り継続作成される表面コピーの転写紙7aはこの転写紙
反転中間トレイ24に一旦収納され、待機状態となる。
However, the front-stage image forming means +8a does not stop its copying operation, and the front side copying operation continues. Therefore, even if the transfer paper reversing conveyance device 23 is selected as the transfer paper reversing device 22 and a double-sided copying operation is performed,
Based on the jam detection, the switching claw 29 is switched and the transfer paper reversing intermediate tray 24 is selected, and the transfer paper 7a of the front side copy that is continuously created by the front-stage image forming means 18a is temporarily stored in this transfer paper reversing intermediate tray 24. , enters the standby state.

このとき、転写紙反転中間1−レイ24では転写紙7a
 1枚毎に仕切り加圧板27が左方へ倒れ。
At this time, in the transfer paper reversal intermediate 1-lay 24, the transfer paper 7a
One by one, the partition pressure plates 27 fall to the left.

転写紙7aの順番が狂うことはない。そして、後段画像
形成手段18b側ではジャム処理が終了したら、転写紙
反転中間トレイ24から転写紙7aを再給紙させて後段
画像形成手段18b側の裏面コピー動作を再開させるこ
とにより両面コピーが完成する。つまり、本実施例方式
によれば、両面コピーにおいて後段画像形成手段+8b
でジャムが生じても、前段画像形成手段+8a側は停止
せずコピー動作製継続するので、ジャ11処理の間に表
面コピーが行なわれることになり、ジャt1処理後は転
写紙反転中間トレイ24から転写紙7aを給紙させると
いう通常の複写機の片面コピー動作と同様の動作を行・
なえばよく、結局、ジャムが生じたとしても効率がよい
ものである。
The order of the transfer sheets 7a will not be out of order. When the jam processing is completed on the rear image forming means 18b side, the transfer paper 7a is re-fed from the transfer paper reversing intermediate tray 24 and the reverse side copying operation on the rear image forming means 18b side is restarted, thereby completing double-sided copying. do. In other words, according to the method of this embodiment, in double-sided copying, the subsequent image forming means +8b
Even if a jam occurs, the front-stage image forming means +8a does not stop and continues copying, so front side copying will be performed during the Jat1 process, and after the Jat1 process, the transfer paper will be reversed on the intermediate tray 24. The operation is similar to the one-sided copying operation of a normal copying machine, in which the transfer paper 7a is fed from the
After all, even if a jam occurs, it is efficient.

ところで、このときの原稿の処理であるが、原稿全部を
自動原稿搬送装置13a側にセラ1へして両面コピーを
行なう場合にあっては、ジャム以後の原稿を全て排紙ト
レイ39に排紙させ、後段画像形成手段18b側が動作
を再開するとき裏面コピーに必要な原稿のみ反転部37
から手差し給紙させるとか、原稿台14b上にセットし
て自動原稿搬送装置13bを動作させるようにしてもよ
い。
By the way, regarding the processing of the original at this time, in the case where the entire original is sent to the automatic document feeder 13a side and transferred to the cellar 1 for double-sided copying, all the originals after the jam are ejected to the ejection tray 39. Then, when the subsequent image forming means 18b side resumes operation, only the original required for reverse side copying is transferred to the reversing section 37.
It is also possible to manually feed the paper from the tray, or to set it on the document table 14b and operate the automatic document feeder 13b.

又1片面原稿であって、表面用と裏面用とに分けて原稿
15a、15bを原稿台14a、14b上にセットして
いる場合には、ジャム検知後、自動原稿搬装装[13b
は停止させるが、自動原稿搬送装置13aは動作を継続
させるよいにすればよ1)。
In addition, if the original is a single-sided original and the originals 15a and 15b are set separately for the front side and the back side on the original stands 14a and 14b, after the jam is detected, the automatic original transporter [13b
It is preferable to stop the automatic document feeder 13a, but allow the automatic document feeder 13a to continue operating.

又、片面コピーモードも選択できるものであり、種々の
片面−コピー処理ができる。まず1本実施例の両面複写
機は前・後段画像形成手段18a、18bの連係結合に
より両面コピーをなし得るものであるが、図示しない切
換スイッチにより前・後段画像形成手段18a、18b
は各々単独で駆動しうるものである。即ち、単独複写機
が2台あることになり、各々の自動原稿搬送装置13a
、13bに原稿15a、]、5bをセットし、転写紙7
a、7bは各々の給紙部8a、8bから給紙させること
により各々の感光体ドラムla、lb、光学系5a、s
b等により並行して同時に片面コピーを行なうことがで
きる。よって、大量のコピーの時、分担してコピーすれ
ば半分の時間で済むことになり高速処理できる。この場
合、原(+81.5 aは排紙トレイ39に排紙され、
転写紙7aは転写紙反転中間トレイ24に排紙される。
Furthermore, a single-sided copy mode can also be selected, and various single-sided copy processes can be performed. First, the double-sided copying machine of this embodiment can perform double-sided copying by linking the front and rear image forming means 18a and 18b.
can each be driven independently. In other words, there are two independent copying machines, and each automatic document feeder 13a
, 13b, set originals 15a, ], 5b, and transfer paper 7.
a, 7b feed paper from the respective paper feed sections 8a, 8b, so that the respective photoconductor drums la, lb, and optical systems 5a, s
One-sided copying can be performed in parallel using b or the like. Therefore, when copying a large amount of copies, if the copying is done by dividing the copying process, the time will be halved, resulting in high-speed processing. In this case, the original (+81.5 a) is ejected to the paper ejection tray 39,
The transfer paper 7a is discharged to the transfer paper reversing intermediate tray 24.

この場合には、前・後段画像形成手段18a、18bの
いずれでジャムが生じたとしても両段画像形成手段18
a、18bの動作に連係がなく同一の転写紙7aに対し
てコピー処理をする訳ではないので、ジャムした方の画
像形成手段18a又は18bのみ停止するだけであり、
他方の画像形成手段+8b又は18aは影響を受けない
In this case, even if a jam occurs in either the front or rear image forming means 18a or 18b, the both image forming means 18
Since the operations of the image forming means 18a and 18b are not linked and copy processing is not performed on the same transfer paper 7a, only the image forming means 18a or 18b that has jammed is stopped.
The other image forming means +8b or 18a is not affected.

次に、両面コピーと片面コピーとの共存について説明す
る。まず、通常の片面コピーが必要な場合には前段画像
形成手段1.8 aを使用せず、後段画像形成手段18
bのみ使用してその片面コピーを行なう。これにより、
前段画像形成手段18 aは不使用状態にあり、もし、
両面コピーが必要になったときには、後段画像形成手段
+8bによる片面コピーと並行して前段画像形成手段1
8aにより表面コピー処理を行なうことができる。この
表面コピー済みの転写紙7aは転写紙反転中間トレイ2
4に一旦収納されることになる。そして、後段画像形成
手段18bでの片面コピーが終了した後、この後段画像
形成手段18bにより裏面コピーを行なえばよいもので
ある。このとき、転写紙7aは転写紙反転中間1〜レイ
24から給紙され。
Next, the coexistence of double-sided copying and single-sided copying will be explained. First, when normal one-sided copying is required, the first stage image forming means 1.8a is not used, and the second stage image forming means 18a is used.
One-sided copying is performed using only b. This results in
The front image forming means 18a is not in use, and if
When double-sided copying is required, the front-stage image forming means 1 is used in parallel with single-sided copying by the rear-stage image forming means +8b.
8a allows surface copy processing to be performed. This transfer paper 7a whose front side has been copied is transferred to the transfer paper reversal intermediate tray 2.
It will be temporarily stored in 4. After the one-sided copying by the subsequent image forming means 18b is completed, the second-sided image forming means 18b may perform the back-side copying. At this time, the transfer paper 7a is fed from the transfer paper reversing intermediate 1 to the lay 24.

通常の片面コピーと同様の給紙状態であり、前段画像形
成手段18a側の処理を待つ必要がないので、短時間で
済む。このよう動作においても、片面コピーを行なって
いる後段画像形成手段18bでジャムが生じた場合、こ
の後段画像形成手段18bは停止させるが、前段画像形
成手段18aは停止させるが、前段画像形成手段18a
の動作は継続させて表面コピーを作成させることができ
る。
The paper feeding state is the same as in normal one-sided copying, and there is no need to wait for processing on the front-stage image forming means 18a, so it can be done in a short time. Even in such an operation, if a jam occurs in the rear image forming means 18b that is performing one-sided copying, the latter image forming means 18b is stopped, the front image forming means 18a is stopped, but the front image forming means 18a is stopped.
The operation can be continued to create a surface copy.

このような処理は両面コピ一時における割込みコピ一時
にも有効である。即ち、割込みコピー(片面コピーとす
る)時には後段画像形成手段18bを利用してその処理
を行なう。この時、割込み原稿は反転路37から手差し
給紙される。そして、前段画像形成手段18aによる表
面コピー処理を続行して転写紙7aを転写紙反転中間ト
レイ24に収納する。割込みコピー解除後、転写紙反転
中間トレイ24内の転写紙7aについての裏面コピーを
後段画像形成手段18−bで再開すればよいものである
Such processing is also effective for interrupt copying during double-sided copying. That is, at the time of interruption copying (single-sided copying), the subsequent image forming means 18b is used to perform the processing. At this time, the interrupted original is manually fed from the reversing path 37. Then, the front side copying process by the front image forming means 18a is continued, and the transfer paper 7a is stored in the transfer paper reversing intermediate tray 24. After canceling the interruption copy, it is only necessary to resume copying the back side of the transfer paper 7a in the transfer paper reversing intermediate tray 24 by the subsequent image forming means 18-b.

効果 本発明は、上述したように複数の画像記録体を少なくと
も転写紙反転中間1−レイを含む転写紙反転装置を設け
た転写紙搬送路で連係結合し、両面コピーを作成するよ
うにしたので、後段画像記録体側でジャムが生じたとし
ても、そのジャム処理の間に転写紙反転中間トレイを利
用してGiJ段画像画像記録体側り表面コピー処理を継
続させることができ、ジャム処理後に、後段画像記録体
側により裏面コピー処理のみ行なえばよく、ジャム発生
時のコピー処理の向上を図ることができるものである。
Effects In the present invention, as described above, a plurality of image recording bodies are connected in a transfer paper conveying path provided with a transfer paper reversing device including at least a transfer paper reversing intermediate 1-lay to create a double-sided copy. Even if a jam occurs on the rear image recording body side, the transfer paper reversing intermediate tray can be used to continue the surface copying process on the side of the GiJ stage image recording body while the jam is cleared, and after the jam is cleared, the rear side Only the back side copying process needs to be performed on the image recording body side, and it is possible to improve the copying process when a jam occurs.

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

図面は本発明の一実施例を示す概略側面図である。 Ia〜lb・・・感光体ドラム(画像記録体)、5a〜
5b・・・光学系、7a・・・転写紙、20・・・転写
紙搬送路、22・・・転写紙反転装置、24・・・転写
紙反転中間トレイ 出 願 人 株式会社 リ コ −
The drawing is a schematic side view showing an embodiment of the present invention. Ia~lb... Photosensitive drum (image recording body), 5a~
5b...Optical system, 7a...Transfer paper, 20...Transfer paper transport path, 22...Transfer paper reversing device, 24...Transfer paper reversing intermediate tray Applicant Ricoh Co., Ltd. -

Claims (1)

【特許請求の範囲】 複数の画像記録体を設け、これらの画像記録体に画像を
形成する光学系を画像記録体毎に設け。 これらの画像記録体を結ぶ転写紙搬送路中に少なくとも
転写紙を反転状態で一旦収納して再給紙搬送させ得る転
写紙反転中間トレイを含む転写紙反転装置を設け、各々
の画像記録体に形成された画像を転写紙の表裏に転写し
て両面コピーを作成する両面複写機において、後段画像
記録体側でジャムが生したとき前段画像記録体側による
コピー動作を続行して表面コピー済みの転写紙を転写紙
反転中間トレイヘ一旦収納し、ジャム処理後、この転写
紙反転中間1−レイから転写紙を再給紙搬送させて後段
画像記録体側による裏面コピー動作を再開させたことを
特徴とする両面複写機。
[Scope of Claims] A plurality of image recording bodies are provided, and an optical system for forming an image on these image recording bodies is provided for each image recording body. A transfer paper reversing device including a transfer paper reversing intermediate tray capable of temporarily storing the transfer paper in an inverted state and re-feeding the paper is provided in the transfer paper conveyance path connecting these image recording bodies, In a double-sided copying machine that transfers the formed image to the front and back sides of transfer paper to create a double-sided copy, when a jam occurs on the latter image recording body, the copying operation by the former image recording body continues and the copying process is performed to copy the front side of the transfer paper. is temporarily stored in the transfer paper reversing intermediate tray, and after the jam is cleared, the transfer paper is re-fed and conveyed from the transfer paper reversing intermediate 1-lay to restart the reverse side copying operation by the subsequent image recording body side. Copy machine.
JP58208497A 1983-11-07 1983-11-07 Both side copying machine Pending JPS60100152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58208497A JPS60100152A (en) 1983-11-07 1983-11-07 Both side copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58208497A JPS60100152A (en) 1983-11-07 1983-11-07 Both side copying machine

Publications (1)

Publication Number Publication Date
JPS60100152A true JPS60100152A (en) 1985-06-04

Family

ID=16557134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58208497A Pending JPS60100152A (en) 1983-11-07 1983-11-07 Both side copying machine

Country Status (1)

Country Link
JP (1) JPS60100152A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0483759U (en) * 1990-11-30 1992-07-21
JP2008302486A (en) * 2007-06-11 2008-12-18 Nippon Telegr & Teleph Corp <Ntt> Fixing tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0483759U (en) * 1990-11-30 1992-07-21
JP2008302486A (en) * 2007-06-11 2008-12-18 Nippon Telegr & Teleph Corp <Ntt> Fixing tool

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