JPS6098455A - Double side copying machine - Google Patents

Double side copying machine

Info

Publication number
JPS6098455A
JPS6098455A JP58207165A JP20716583A JPS6098455A JP S6098455 A JPS6098455 A JP S6098455A JP 58207165 A JP58207165 A JP 58207165A JP 20716583 A JP20716583 A JP 20716583A JP S6098455 A JPS6098455 A JP S6098455A
Authority
JP
Japan
Prior art keywords
transfer paper
copying
double
sided
image forming
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
JP58207165A
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 JP58207165A priority Critical patent/JPS6098455A/en
Publication of JPS6098455A publication Critical patent/JPS6098455A/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
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00Apparatus for electrophotographic processes
    • G03G2215/00362Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535Stable handling of copy medium
    • G03G2215/00548Jam, error detection, e.g. double feeding

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 raise a copy processing in case when a jam is generated, by constituting so that an operation of a pre-stage picture recording body is stopped immediately even if a jam is generated in the pre-stage picture recording body, but an operation is continued in a post-stage picture recording body side, a both side copying, etc. are completed, paper is discharged, and thereafter, it is stopped. CONSTITUTION:In case when a jam is generated in a pre-stage image forming means 18a side when executing a both side copy processing, a copying operation of this pre-stage image forming means 18a side is stopped immediately by a detection of a jam sensor in the pre-stage image forming means 18a, and a jam processing for removing a jam paper is executed. As for a post-stage image forming means 18b side, its copying operation is not stopped but continued, a rear side copying is executed, and a both side copying is completed. Also, after this transfer paper 7a has been discharged to a discharge paper tray 55, etc., the operation of this post-stage image forming means 18b is stopped, and a jam processing is awaited.

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1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
送路が両面用ト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、両面コピーの所要時間が長いもの
である。
BACKGROUND ART There are various types of conventional 1-sided copying machines, but generally, as shown in Japanese Patent Publication No. 49-36264, the 1-sided copying machine
The transfer paper transport path is formed in a loop shape including a double-sided tray and the like. As a result, there is a high probability that the transfer paper will jam, leading to frequent troubles, and the time required for double-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、この方式でも表面
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, even with this method, in order to match the image orientation between the front and back copies,
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5一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1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 one image recording body.

1bが前・後段に並置されている。これらの感光体ドラ
ムIa、lbに対し、電子写真プロセスに従い、帯電チ
ャージャ2a、2b、イレーサ3a。
1b are juxtaposed in the front and rear rows. Chargers 2a, 2b and eraser 3a are attached to these photosensitive drums Ia, 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5a、5b、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、]Ob、除電装置1
1a、Ilb、定着装置12a、1.2b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1.3a、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、14
b上にセラ1−された原稿]、5a、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, optical systems 5a, 5b that expose and image the original on contact glasses 4a, 4b, developing devices 6a, 6b, transfer paper 7
a, 7b paper feed sections 8a, 8b, separation transfer charger 9a
, 9b, cleaning device 10a, ]Ob, static eliminator 1
1a, Ilb, and fixing devices 12a, 1.2b are provided. Here, automatic document feeders 1.3a and 13b are provided on contact glasses 4a and 4b. These automatic document feeders 13a and 13b are connected to document tables 14a and 14.
It mainly consists of conveyor belts 16a and 16b for conveying originals 1-b and 5a and 15b, 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+8a、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2oは感光体ドラムla、lb間
を結んで転写紙7a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、その途中に転写紙反転
装置22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。転写紙反
転搬送装置23は周知のように三本ローラ対25と反転
路26とにより構成されており1図示の如く三本ローラ
対25の」二側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、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。
The front and rear image forming means +8a and 18b are connected by a transfer paper conveyance path 20 and a document conveyance path 21. First, the transfer paper conveyance path 2o connects the photoreceptor drums la and lb to convey the transfer paper 7a from the front side to the rear side, and is formed in a substantially straight line. have This transfer paper reversing device 22 includes 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 can accommodate a plurality of sheets of transfer paper 7a, and then reverses it. It is composed of a transfer paper reversing intermediate tray 24 that can feed paper. As is well known, the transfer sheet reversing conveyance device 23 is composed of three roller pairs 25 and a reversing path 26, and as shown in the figure, two follower rollers on the two sides of the three roller pairs 25 open the reversing path 26. If the reversing path 26 is closed, the transfer paper 7a enters the reversing path 26 and is reversed and conveyed, but if the reversing path 26 is closed, the transfer sheet 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、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。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。
The transfer paper reversing intermediate tray 24 is provided with a partition pressure plate 27 and a paper feed roller 28 . A switching claw 29 is provided for selectively switching between the transfer paper reversing and conveying device 23 side and the transfer paper reversing intermediate tray 24 side. 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 an automatic document conveyance device 13a.

13b間に結んで原稿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 convey the original 15a from the front stage side to the rear stage side, and is formed in a substantially straight line, and a document reversing device 35 is provided in the middle thereof.

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とからなり、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17a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+3a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 is composed of three roller pairs 36 and a reversing path 37, similar to the transfer sheet reversing conveyance and feeding station 23, and the reversing path 3
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 recycling path 17a side is provided at the rear stage of the automatic document feeder 13a.
Furthermore, a switching claw 40 is provided for selectively switching between the paper discharge tray 39 side provided for the automatic document feeder +3a and the recycling path 17a side.

ついで、感光体ドラム1b側の定着送置12bの後段に
は三本ローラ対50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11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
13b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
17b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 50 and a reversing path 51 is provided at the rear stage of the fixing feed station 12b on the side of the photosensitive drum 1b. 11 paper trays 55 and a sorter 56 are provided. Further, a paper discharge tray 60 is provided downstream of the automatic document feeder 13b via a reversal discharge device 59 having three roller pairs 57 and a reversal path 58. Reference numeral 61 is a switching claw for selectively switching between the reversing and discharging station 59 side and the recycle path 17b 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1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1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。
First, obtain one double-sided copy from one double-sided original 1-1
Consider the case of double-sided copy mode. At this time.

原稿15aを原稿台14a上にセットする。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
ルト16aによりコンタクトガラス4a上に送られ停止
する。そこで、光学系5aがコンタクトガラス4a上の
原稿15aの表面を露光スキャニングして回転中の感光
体ドラム1a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へ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、コンタクトガラス4a
上の原稿15a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! L 3 a側へ
向かい、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。同時に、自動原稿搬送装置13
aで側では次の原稿15aがコンタク1−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1’2a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上になるように反転されて転写紙
搬送路20を通り感光体ドラム1bに対し待機状態とな
る。そこで、この感光体ドラムlb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5
b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15a5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)。
The original 15a is set on the original table 14a. However,
When copying is started, the original 15a is fed, conveyed onto the contact glass 4a by the conveyor belt 16a, and stopped. Therefore, the optical system 5a exposes and scans the surface of the document 15a on the contact glass 4a to form a latent image on the rotating photosensitive drum 1a. After this latent image is developed by the developing device 6a, the latent image is separated and transferred onto a transfer paper 7a fed at a predetermined timing from the paper feeding section 8a side by a transfer charger 9a.
It is transferred by the action of Then, the image passes through the fixing device 12a and the surface copying onto the transfer paper 7a is completed. When the surface copying is completed in this way, the contact glass 4a
The upper document 15a is conveyed to the document reversing device 35 side by the conveyor belt 16a, and is reversed by the document reversing device 35 so that the back side is facing down and is transferred to the automatic document conveying device! It heads toward the L 3 a side and is set on the contact glass 4b by the conveyor belt 16b. At the same time, automatic document feeder 13
On the side a, the next original 15a is set on the contact glass 4a. On the other hand, the transfer paper 7a on which the front side has been copied is sent from the fixing device 1'2a to the transfer paper reversing conveyance device 23, and is reversed so that the uncopied back side faces upward, and passes through the transfer paper conveyance path 20 to the photosensitive drum 1b. will be in a standby state. Therefore, backside copying is performed on the photosensitive drum lb side (at this time, frontside copying of the next document is performed on the photosensitive drum la side). That is, the original 15a set on the contact glass 4b! Optical system 5 is on the surface side
A latent image is formed on the photoreceptor drum lb by exposure scanning in step b, and a back side copy is formed on the back side of the front side copy-completed transfer paper 7a according to the development, transfer and fixing processes. Then, the transfer paper 7a on which both sides of the original 15a5 have been copied is discharged to a paper discharge 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が切換ね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
動原稿搬送袋fl 13 aによりコンタクトガラス4
a上に給送セットされた原稿15aにつき感光体ドラム
la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
。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」二の原稿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側へ切換ねり、感
光体ドラムlb側への給紙待機状態となる。しかして、
コンタクトガラス4 b上にセットされた原稿15aに
つき感光体ドラム1b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
から給紙ローラ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。
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 switches and the transfer paper reversing intermediate tray 24 is selected instead of the transfer paper reversing conveyance device 23. First, the contact glass 4 is opened using the automatic document transport bag fl 13a.
For the original 15a fed and set on the original 15a, the copying operation is repeated for the number of repeat sheets on the photosensitive drum la side, and a front side copy is created. 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. Then, when the front side copying for the number of repeat sheets is completed,
The document 15a on the contact glass 4a is conveyed and set onto the contact glass 4b while being reversed by the document reversing device 35. On the other hand, a paper discharge number detection means is provided in the transfer paper reversing intermediate tray 24 or in the conveyance path immediately before it, and when it is detected that the transfer paper 7a corresponding to the number of repeat sheets has been stored, the partition pressure plate 27 is activated to feed the paper. It switches to the roller 28 side and enters a standby state for paper feeding to the photosensitive drum lb side. However,
The reverse side of the original 15a set on the contact glass 4b will be copied on the photosensitive drum 1b side, and the transfer paper 7a on which the front side has been copied is transferred to the intermediate tray 24.
Then, the sheets are sequentially fed one by one in an inverted state by the paper feed roller 28, and double-sided copying is completed.

又、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1−1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1〜レイ24が選択される。一方
、原稿側については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]、 5 aにつき
感光体1−ラム1.1側で表面コピーが終了した後、こ
のコンタクトガラス4a」二の奇数番目の原稿15aを
原稿搬送路21−コンタクトガラス4bを通して直ちに
■1紙させる一方、原稿台14a」二の次の偶数番口(
裏面用)の原稿15a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1−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。
Also, in the double-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 a 1-1 duplex copy mode and a repeat duplex 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 1 to ray 24 are selected. be done. On the other hand, two methods can be adopted for the original document side. First, all the originals are set on the original table 14a of the automatic document feeder 13a, and after the front side copy is completed on the photoconductor 1-ram 1.1 side for 5a, This contact glass 4a'' second odd numbered document 15a passes through the document conveying path 21 and the contact glass 4b and is immediately transferred to the second even numbered document tray 14a''.
There is a method in which a document 15a (for the back side) is passed through the contact glass 4a and the document conveyance path 21, and then conveyed and set on the contact glass 4b to be used for back side copying.

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15
aとして原稿台+ 4 b 」二にセットし、裏面用は
原稿15bとして原稿台+ 4 h上にセットし、各々
の自動原稿搬送装置13a、+3h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、表
面コピーに供した原稿]、 5 aは排紙トレイ39に
排紙される。
That is, the document reversing device 35 becomes inactive. Also, from the beginning, the original is divided into those for the front side and those for the back side, and the one for the front side is
The document 15b for the back side may be set on the document table +4h as the document 15a, and the automatic document feeders 13a and +3h may be operated separately. At this time, the document conveyance path 21 is closed, and the document used for surface copying], 5a 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18aが表面コピーモ、−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7
a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Ib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」ニ
するものである。これは原稿側でも同様であり、自動原
稿1般送送置13a、+3b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Ib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1a、Ib双方とも全く同じにすることができる
In any case, in the double-sided copy mode, the front-stage image forming means 18a 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. be. In this case, transfer paper 7
Since the transfer paper a is conveyed from the photoconductor drum 1a side to the photoconductor drum Ib side by a substantially straight and short transfer paper conveyance path 20, the probability of occurrence of a transfer paper jam is reduced and the copying speed is also improved. . This also applies to the document side, and since the document transport path 21 connecting the automatic document 1 general feed stations 13a and +3b 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 photoreceptor drum Ib side, which is equivalent to the case where the paper is fed toward the photoreceptor drum 1a. , 5b and the like can be made exactly the same on both the photosensitive drums 1a and Ib.

従って、従来の如く、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、原稿も鵬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、+3b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 the images, as in the past, and the system can be simplified. Furthermore, as a result, it is possible to adopt a method in which the originals flow from the front side to the rear side in a simple manner, and by using the automatic document feeders 13a and +3b, it is possible to automatically and quickly perform a large amount of double-sided copying. It is.

しかして、このような両面コピー処理時に、前段画像形
成手段18a側でジャムが発生した場合を考える。一般
に、この種の装置ではジャム発生時、装置全体が停止し
てしまうものであるが、これでは後段画像形成手段18
b側に移行している転写紙もジャムしてしまうことにな
る。そこで、本実施例では前段画像形成手段18aにお
けるジャムセンサーの検知によりこの前段画像形成手段
+8a側のコピー動作は直ちに停止させ、ジャム紙を取
除くジャム処理を行なう。しかしながら、前回の表面コ
ピー済みの転写紙7aは後段画像形成手段+8b側へ移
行してコピー中であることが( 大半であるので、この後段画像形成手段18b側につい
てはコピー動作を停止させず続行させC裏面コピーを行
ない、両面コピーを完成させる。そして、この転写紙7
aが排紙トレイ55等へ排紙された後、この後段画像形
成手段+8bの1)1作を停止させ、ジャム処理を待つ
ものである。つまり、本実施例によれば、両面コピーに
おいて前段画像形成手段18a側でジャムが生じても、
後段画像形成手段18b側の動作が停止せず継続するの
で、この後段画像形成手段18b側でもジャムしてしま
うことはない。又、後段画像形成手段+8b側に既に移
行している転写紙7aについて両面コピーが完成するの
で無駄になることはない。つまり。
Consider a case where a jam occurs on the front image forming means 18a side during such double-sided copy processing. Generally, in this type of apparatus, when a jam occurs, the entire apparatus stops; however, in this case, the subsequent image forming means 18
The transfer paper that has moved to the b side will also jam. Therefore, in this embodiment, upon detection of a jam sensor in the front image forming means 18a, the copying operation on the front side image forming means +8a is immediately stopped, and jam processing is performed to remove the jammed paper. However, the transfer paper 7a whose front side has been previously copied is transferred to the post-stage image forming means +8b side and is being copied (in most cases, the copying operation is continued without stopping on the post-stage image forming means 18b side). Copy the back side of C to complete the double-sided copy.Then, transfer paper 7
After the paper a is discharged to the paper discharge tray 55 or the like, 1) 1 production of the subsequent image forming means +8b is stopped and the jam processing is waited. In other words, according to this embodiment, even if a jam occurs on the front image forming means 18a side during double-sided copying,
Since the operation of the second-stage image forming means 18b continues without stopping, jams do not occur on the second-stage image forming means 18b as well. Further, since a double-sided copy is completed for the transfer paper 7a that has already been transferred to the subsequent image forming means +8b side, there is no wastage. In other words.

ジャムした両面コピー分1枚だけについて無駄になるだ
けである。
Only one jammed double-sided copy is wasted.

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側にセツトシて両面コピーを行
なう場合にあっては、ジャムに対応する原稿を排紙トレ
イ60に排紙させるとともにその裏面用の原稿(両面原
稿であれば不要)も排紙させてもよいが、リサイクルパ
ス17aを利用してコンタクトガラス4a上の露光位置
に再セットし、ジャムした分からジャム処理移にコピー
動作を再開させるのが効果的である。又、片面原稿であ
って、表面用と裏面用とに分けて原稿15a、15hを
原稿台14a、14b上にセットしている場合にも、ジ
ャムに対応する原稿15a。
By the way, regarding the document processing at this time, if the entire document is set on the automatic document feeder 13a side and double-sided copying is performed, the document corresponding to the jam is ejected to the paper ejection tray 60, and the document is The original for the back side (unnecessary if it is a double-sided original) may also be ejected, but it can be reset to the exposure position on the contact glass 4a using the recycle path 17a, and the copy operation for the jammed area can be performed to remove the jam. It is effective to restart it. Further, even if the originals 15a and 15h are one-sided originals and are set on the original tables 14a and 14b separately for the front side and the back side, the original 15a can be jammed.

15bを各々排紙I−レイ39.Goに排紙させて最後
にコピーをやり直してもよいが、リサイクルパス17a
、17bの利用によりコンタクトガラス4a、4b上に
再セットするのが望ましい。
15b respectively to the discharge I-ray 39. You can eject the paper to Go and redo the copy at the end, but the recycle path 17a
, 17b to reset the contact glasses 4a, 4b.

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、本実施例の両面複写機
は前・後段画像形成手段18a、+8b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、+8bは
各々単独で駆動しうるちのである。即ち、甲独複写機が
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+5a、+5bをセットし、転写紙7a、
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、Ib、光学系5a、5b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、
原稿15aは排紙1〜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。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18a、1.8
b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、ジャムした方の両僅形成手
段18a又は+8b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。
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 +8b, but each of the front and rear image forming means 18a and +8b can be operated independently by a changeover switch (not shown). It is powered by Uruchino. In other words, there are two copying machines, and each automatic document feeder 13a,
Set originals +5a and +5b on 13b, transfer paper 7a,
By feeding paper from the respective paper feed sections 8a and 8b, one-sided copying can be performed simultaneously using the respective photosensitive drums la and Ib, optical systems 5a and 5b, etc. in parallel. 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 15a is ejected to paper ejection 1 to ray 39, and is transferred to the transfer paper 7a.
is discharged to the transfer paper reversing intermediate tray 24. In this case, even if a jam occurs in either the front or rear image forming means 18a, 18b, both image forming means 18a, 1.8
Since the operations of step b are not linked and copy processing is not performed on the same transfer paper 7a, only the image forming means 18a or +8b that has jammed is stopped, and the other image forming means +8b or 18a is stopped. is not affected.

ついで、前・後段画像形成手段+8a、18bが連係結
合された特徴を生かせる片面コピーにおいては本発明を
適用できる。例えば、両面原稿を片面コピーにしたい場
合があるが、この場合には両面原稿を原稿台14aにセ
ットし、感光体ドラムIa側で表面コピ一時と同様に原
稿表面を転写紙7aに片面コピーし、この転写紙7aを
転写紙反転中間トレイ24に排紙する。この動作終了後
、コンタクタガラス4a上の原稿15aを原稿反転装置
35を通して反転させてコンタクトガラス4b上に搬送
セットする。そして、この原稿15a真面につき感光体
ドラムlb側で転写紙7bに片面コピーを行なう。同様
の動作を繰返すことにより、両面原稿−片面コピーの処
理が自動的に行なえる。この場合において、前段画像形
成手段18a側でジャムが生じたとしても、前回の原稿
はコンタク1−ガラス4b上に移行しており、このM(
稿裏面につき後段画像形成手段18bの動作を継続させ
て転写紙7bにその片面コピーを作成して、停止するも
のである。
Next, the present invention can be applied to single-sided copying that takes advantage of the feature that the front and rear image forming means +8a and 18b are linked. For example, you may want to make a single-sided copy of a double-sided original, but in this case, set the double-sided original on the document table 14a, and copy the front side of the original onto the transfer paper 7a on the photosensitive drum Ia side in the same way as when copying the front side. , this transfer paper 7a is discharged to the transfer paper reversing intermediate tray 24. After this operation is completed, the document 15a on the contact glass 4a is reversed through the document reversing device 35, and conveyed and set on the contact glass 4b. Then, one-sided copying of the original 15a is performed on the transfer paper 7b on the side of the photosensitive drum lb. By repeating the same operation, double-sided original-single-sided copy processing can be performed automatically. In this case, even if a jam occurs on the front image forming means 18a side, the previous original has been transferred to the contact 1-glass 4b, and this M(
The second-stage image forming means 18b continues to operate on the back side of the document to make a one-sided copy on the transfer paper 7b, and then stops.

又、同じ片面コピーでも複数の原稿内容を同一コピー面
に重ねてコピーする多重コピーが要求される場合もある
が、この場合には転写紙7aに第一片面コピーを行なっ
た後、この転写紙7aを非動作状態の転写紙反転搬送装
置23を通して非反転状態で感光体ドラムlb側へ送り
、コンタクトガラス41〕上の原稿により第二片面コピ
ーを重ねて行なえばよいものである。この場合において
も。
In addition, even when copying the same one-sided copy, there are cases where multiple copying is required in which multiple original contents are overlapped and copied on the same copying side. In this case, after performing the first one-sided copying on the transfer paper 7a, 7a is sent to the photosensitive drum 1b side in a non-inverted state through the transfer paper reversing conveyance device 23 in an inactive state, and a second single-sided copy is performed by superimposing the document on the contact glass 41]. Even in this case.

前段画像形成手段18a側でジャムした場合、上述と同
様に処理できる。
If a jam occurs on the front-stage image forming means 18a side, it can be handled in the same manner as described above.

更には、例えばB5サイズの原稿2枚分をB4サイズ1
枚のコピーにしたい場合もあるが、この場合には前段画
像形成手段1.8 aで1枚の原稿につきB4サイズの
転写紙7aの半分にコピーを行ない、この転写紙7aを
反転することなく感光体ドラム1b側へ送り、後段画像
形成手段18b側で2枚目の原稿につき転写紙7aの残
りの116分にコピーすればよいものである。これは両
面原稿にも適用でき、両面原稿を見開きコピーにするこ
とができる。
Furthermore, for example, two B5 size originals can be converted into one B4 size document.
In some cases, it may be desired to make a copy of one sheet of paper, but in this case, the first stage image forming means 1.8a copies each sheet of original onto half of the B4 size transfer paper 7a, without reversing the transfer paper 7a. It is sufficient to send the image to the photosensitive drum 1b side and copy the second document onto the remaining 116 minutes of the transfer paper 7a on the subsequent image forming means 18b side. This can also be applied to double-sided originals, allowing double-sided originals to be made into double-sided copies.

効果 本発明は、上述したように複数の画像記録体を転写紙反
転装置を含む転写紙搬送路で連係結合する乱入構成にお
いて、前段画像記録体側でジャムが生じてもこの前段画
像記録体の動作は直ちに停止させるが、後段画像記録体
側では動作を継続させて両面コピー等を完成させて排紙
させた後、停止させたので、後段画像記録体側でも併せ
てジャムを生ずることなく、かつ、無効となるコピーを
減少させて、ジャム発生時のコピー処理の向上を図るこ
とがでさるものである。
Effects As described above, the present invention has an intrusion configuration in which a plurality of image recording bodies are connected and connected by a transfer paper conveyance path including a transfer paper reversing device, and even if a jam occurs on the front image recording body side, the operation of this former stage image recording body is prevented. is stopped immediately, but the subsequent image recording medium continues to operate and is stopped after completing double-sided copying, etc., and ejecting the paper, so that no jam occurs on the subsequent image recording medium as well, and the operation is invalid. This makes it possible to improve the copying process when a paper jam occurs by reducing the number of copies that occur.

′ 4、図面の簡単な説明 図面は本発明の一実施例を示す概m3側面図であla〜
1b 感光体ドラム(画像記録体)、58〜5b・光学
系、7a・・転写紙、2o・・転写紙搬送路、22・・
転写紙反転装置 出 願 人 株式会社 リ コ −
4. Brief description of the drawings The drawings are approximately m3 side views showing one embodiment of the present invention.
1b Photosensitive drum (image recording body), 58-5b・Optical system, 7a・・Transfer paper, 2o・・Transfer paper conveyance path, 22・・
Transfer paper reversing device Applicant Rico Co., Ltd. -

Claims (1)

【特許請求の範囲】[Claims] 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、前段画
像記録体側でジャムが生じたときこの前段画像記録体側
の動作を停止ヒさせる一方、後段画像記録体側へ移行し
ている転写紙についてコピー動作を継続して排紙させ、
その後この後段画像記録体側の動作を停止させることを
特徴とする両面複写機。
A plurality of image recording bodies are provided, an optical system for forming images on these image recording bodies is provided for each image recording body, a transfer paper reversing device is provided in a transfer paper transport path connecting these image recording bodies, and each In a double-sided copying machine that transfers an image formed on an image recording medium to the front and back sides of transfer paper to create a double-sided copy, when a jam occurs on the front side of the image recording body, the operation of the front side of the image recording body is stopped; Continuing the copying operation and ejecting the transfer paper that has moved to the subsequent image recording body,
A double-sided copying machine characterized in that the operation of the subsequent image recording medium is then stopped.
JP58207165A 1983-11-04 1983-11-04 Double side copying machine Pending JPS6098455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58207165A JPS6098455A (en) 1983-11-04 1983-11-04 Double side copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58207165A JPS6098455A (en) 1983-11-04 1983-11-04 Double side copying machine

Publications (1)

Publication Number Publication Date
JPS6098455A true JPS6098455A (en) 1985-06-01

Family

ID=16535301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58207165A Pending JPS6098455A (en) 1983-11-04 1983-11-04 Double side copying machine

Country Status (1)

Country Link
JP (1) JPS6098455A (en)

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