JPS599053B2 - double-sided copying device - Google Patents

double-sided copying device

Info

Publication number
JPS599053B2
JPS599053B2 JP49138282A JP13828274A JPS599053B2 JP S599053 B2 JPS599053 B2 JP S599053B2 JP 49138282 A JP49138282 A JP 49138282A JP 13828274 A JP13828274 A JP 13828274A JP S599053 B2 JPS599053 B2 JP S599053B2
Authority
JP
Japan
Prior art keywords
sheet
path
copy
feed
feed roll
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
Application number
JP49138282A
Other languages
Japanese (ja)
Other versions
JPS5099553A (en
Inventor
ハウア−ド ル−ニ− ジヨン
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of JPS5099553A publication Critical patent/JPS5099553A/ja
Publication of JPS599053B2 publication Critical patent/JPS599053B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
    • G03G15/6573—Feeding path after the fixing point and up to the discharge tray or the finisher, e.g. special treatment of copy material to compensate for effects from the fixing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00417—Post-fixing device
    • G03G2215/00421—Discharging tray, e.g. devices stabilising the quality of the copy medium, postfixing-treatment, inverting, sorting
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00417—Post-fixing device
    • G03G2215/0043—Refeeding path
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00417—Post-fixing device
    • G03G2215/0043—Refeeding path
    • G03G2215/00438—Inverter of refeeding path
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535—Stable handling of copy medium
    • G03G2215/00556—Control of copy medium feeding
    • G03G2215/00586—Control of copy medium feeding duplex mode
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535—Stable handling of copy medium
    • G03G2215/00687—Handling details
    • G03G2215/007—Inverter not for refeeding purposes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S271/00—Sheet feeding or delivering
    • Y10S271/902—Reverse direction of sheet movement

Description

【発明の詳細な説明】 近年、数多くの高容量静電複写機が開発されている。[Detailed description of the invention] In recent years, many high capacity electrostatic copying machines have been developed.

これらの複写機の高速複写能力を利用するには、操作員
が原画を複写機のプラテンに取付けたり取外したりする
に要する時間を少なくするため、原画を複写機のプラテ
ンヘ送つたりプラテンから取り去つたりするための原画
取扱い装置が利用されている。その上、でき上がつた多
量のコピーを処理するため、操作員が複写工程に注意を
払わないように米国特許第３８３０５９０号に記載され
ている型の原画の丁合い装置が開発された。これらの開
発に続いて、コピーシートの両面に複写（通常両面複写
と呼ばれる）する複写機が要望されるようになつた。こ
のことは片面コピーと両面コピーの両方を作るようにな
つている複写装置に数多くの問題を生じる。すなわち、
複写機は片面複写済みのコピーシートを丁合い装置へ直
接送ることができなければならず、この片面複写済みシ
ートの反対面に複写して両面コピーを作る準備をするた
め、この片面複写済みシートをコピーシート供給トレー
へ戻すようになつていなければならず、且つでき上がつ
た両面コピーを正しいぺージ順に丁合いする場合には操
作員の手をわずらわさずに最終コピーをすぐとじること
ができるようにするため丁合い装置へ送る前に両面コピ
ーを正しい向きになるよう反転させるようになつていな
ければならない。米国特許第２９０１２４６号に記載さ
れている型のカード反転機構および米国特許第３５２３
６８７号に記載されている型のシー卜反転機構は当業者
に公知である。しかし、これら公知の反転装置は通常種
々の厚さのコピーシー卜を取扱うことができず、通常用
いられる型のシート材料上にコピーを作る高速複写装置
で使用するには不適である。高速度の場合、コピーシー
トの前端および後端に損傷を与えずに確実に軽量コピー
シートを取扱うことのできる反転一逆転装置を備えてい
なければならない。To take advantage of the high-speed copying capabilities of these copiers, it is necessary to transport originals to and from the copier platen to reduce the time it takes for the operator to attach and remove originals from the copier platen. An original image handling device is used to remove the paper. Additionally, in order to handle the large number of copies produced, an original collating device of the type described in U.S. Pat. No. 3,830,590 was developed to avoid the operator's attention to the copying process. Following these developments, there became a need for copiers that could copy on both sides of a copy sheet (commonly referred to as duplex copying). This creates a number of problems for reproduction machines designed to make both single-sided and double-sided copies. That is,
The copier must be able to feed a single-sided copy sheet directly to a collating device, in preparation for copying the opposite side of the single-sided sheet to make a double-sided copy. must be returned to the copy sheet supply tray, and when the completed double-sided copies are collated in the correct page order, the final copies can be closed immediately without the operator's intervention. In order to be able to do this, it must be possible to flip the double-sided copies to the correct orientation before sending them to the collating device. Card flipping mechanism of the type described in U.S. Pat. No. 2,901,246 and U.S. Pat. No. 3,523
Seat inversion mechanisms of the type described in '687 are known to those skilled in the art. However, these known inverting devices typically cannot handle copy sheets of various thicknesses and are unsuitable for use in high speed copying machines that make copies on commonly used types of sheet material. At high speeds, a reversing and reversing device must be provided that can reliably handle lightweight copy sheets without damaging the leading and trailing edges of the copy sheets.

厚いコピーシートの場合、高速度のシートを反転させる
ために必要な高慣性力を巧みに処理することのできる装
置でなければならない。さらに、多種のコピーシート在
庫が考えられるので、かなり広範囲の寸法のシートを取
扱うことが出来る装置でなければならない。従つて、本
発明の目的は、コピーシートを丁合い装置へ送るため、
あるいは両面コピーが必要な場合には両面複写用コピー
シートトレーへ片面複写済みコピーを送り且つ両面コピ
ーを作つた後この両面複写済みコピーシートを反転させ
て丁合い装置申で正しいシートの向きになるようにする
ため片面複写済みまたは両面複写済みコピーシートを取
扱うのに適したコピーシート取扱い装置を提供すること
である。For thick copy sheets, the device must be able to handle the high inertia forces required to invert the high speed sheets. Furthermore, since a wide variety of copy sheet inventories are possible, the apparatus must be capable of handling sheets of a fairly wide range of sizes. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a method for feeding copy sheets to a collating device.
Or, if double-sided copying is required, send the single-sided copied copy to the double-sided copy sheet tray, make a double-sided copy, and then flip this double-sided copied copy sheet so that the sheet is oriented correctly in the collating device. It is an object of the present invention to provide a copy sheet handling device suitable for handling copy sheets that have been copied on one side or on both sides.

本発明は複写機と丁合い装置とを含む複写装置に関する
ものであり、この複写装置には片面複写済みコピーを第
１通路を通つて丁合い装置へ差し向ける搬送装置と、片
面に複写済みのコピーシートを、丁合い装置へ送る前に
第２通路へそらし、この第２通路を通つてシートを再び
複写機へ送り、両面複写を作り得るようにするための一
定位置ヘシートを送る偏向装置とが設けられ、上記偏向
装置は両面コピーをそらして第２通路の１部分を通つて
送るようになつており、第２通路内にはコピーシートの
前端と接触してシートの通過を停止させるための装置と
、そらされたシートの後端と接触してシートを逆方向に
送つてページ揃えのため丁合い装置へ送るようになつて
いる送り装置とが設けられている。The present invention relates to a copying apparatus that includes a copying machine and a collating device, and the copying device includes a conveying device that directs single-sided copies to a collating device through a first path, and a deflecting device for deflecting the copy sheet to a second path before feeding it to the collating device and feeding the sheet through the second path to a fixed position for feeding the sheet back to the copier to make a double-sided copy; is provided, and the deflection device is adapted to deflect the duplex copy and send it through a portion of the second path, the deflection device being adapted to deflect the duplex copy and send it through a portion of the second path, the deflection device being adapted to contact the leading edge of the copy sheet and stop the sheet from passing through the second path. A feeding device is provided which is adapted to contact the trailing edge of the deflected sheet and feed the sheet in a reverse direction to a collating device for page alignment.

本発明を組入れることができる静電複写装置の概要を第
１図について説明する。An overview of an electrostatographic reproduction apparatus in which the present invention may be incorporated is described with reference to FIG.

第１図の装置において、照明装置１０内に固定して配置
した透明プラテン土に原画Ｄを置く。原画はプラテン上
にある間に照明装置で露光され、原画に対応する光像を
生じる。この光像は光学系１１にょって露光ステーシヨ
ンＡへ投影され、可撓性光導電性ベル卜１２の形の可動
ゼログラフイープレートの感光性表面を露光する。ベル
トの露光される部分は、矢印で示した方向に動いて露光
ステーシヨンに達する前に、ベルト支持ロール１４と１
６との間にわたるベルト走行部に配置されたコロナ発生
装置１３で一様に帯電される。露光ステーシヨンはロー
ル１４と第３支持ロール１５との間にわたつている。光
像によつてベルト表面が露光されると、光導電層の光の
当つた領域は放電してベルト上にはプラテン上の原画か
らの光像に対応する像輪郭の静電潜像が残る。In the apparatus shown in FIG. 1, an original image D is placed on a transparent platen fixedly placed within the illumination device 10. While on the platen, the original image is exposed to light by an illumination device, producing a light image corresponding to the original image. This light image is projected by optical system 11 onto exposure station A, exposing the photosensitive surface of a movable xerographic plate in the form of a flexible photoconductive belt 12. The exposed portion of the belt passes through belt support rolls 14 and 1 before moving in the direction indicated by the arrow and reaching the exposure station.
The corona generating device 13 disposed in the belt running section extending between the belt 6 and the belt 6 is uniformly charged. The exposure station spans between roll 14 and third support roll 15. When the belt surface is exposed to the light image, the illuminated areas of the photoconductive layer discharge, leaving an electrostatic latent image on the belt of the image outline corresponding to the light image from the original image on the platen. .

ベルト表面の走行が続くと、静電潜像はロール１５のま
わりを通過し、ベルトの第３走行部に配置してある現像
ステーシヨンＢへ送られる。この現像ステーシヨンには
現像装置１７が設けられている。現像装置１７は多数の
刷子１ｒから成り、これらの刷子１７′は上方へ移動し
ている傾斜した光導電性ベルト１２の表面の近くへ現像
剤を運んで静電潜像を現像する。現像された像は、ベル
ト１２により転写ステーシヨンＣへ送られ、この現像済
み像がロール１６のまわりを回るときベルトの連動と同
期の速さでロール１６ヘコーピーシートが送られて来て
現像済み像の転写が行われる。As the belt surface continues to run, the electrostatic latent image passes around roll 15 and is delivered to development station B, which is located in the third run of the belt. A developing device 17 is provided in this developing station. The development device 17 consists of a number of brushes 1r, which carry developer material near the surface of the upwardly moving inclined photoconductive belt 12 to develop the electrostatic latent image. The developed image is sent to the transfer station C by the belt 12, and as this developed image rotates around the roll 16, a copy sheet is sent to the roll 16 at a speed synchronized with the movement of the belt, and the developed image is transferred to the transfer station C. Transfer of the image takes place.

このステーシヨンには、転写ロール１８が設けてあり、
この転写ロール１８はベルト１２と転写係合するとき各
コピーシートの非転写側に接触するように配置してある
。ール１８には、コピーシートとベルト１２が接触する
とき、ベルト上の現像済み像がコピーシート面に静電的
に転写されるように十分なバイアス電圧がかけてある。
ベルト上の現像済み像がロール１６のまわりに搬送され
て来るとき、第１コピーシート取扱い機構２０または第
２コピーシート取扱い機構２１からコピーシートを搬送
して該コピーシートをこの像に重ねるための適当なシー
ト搬送機構も設けられている。機構２０，２１およびベ
ルト１２上に静電潜像を形成させるための照明装置と連
動するプログラミング装置が、コピーシートの到着とタ
イミングを合わせて有効に現像済み像を転写ステーシヨ
ンＣに送るようになつている。シートへ像が転写された
後、シートは剥離用搬送装置２３でベルト１２から剥離
され、次に、この剥離用搬送装置２３で定着装置２５へ
運ばれ、そこでシート上の現像、転写済みゼログラフイ
一粉末像をシートに永久的に定着させる。This station is provided with a transfer roll 18,
The transfer roll 18 is positioned so as to contact the non-transfer side of each copy sheet when in transfer engagement with the belt 12. Sufficient bias voltage is applied to roller 18 so that when the copy sheet and belt 12 come into contact, the developed image on the belt is electrostatically transferred to the surface of the copy sheet.
When the developed image on the belt is conveyed around the roll 16, a copy sheet is conveyed from the first copy sheet handling mechanism 20 or the second copy sheet handling mechanism 21 and the copy sheet is superimposed on the image. A suitable sheet transport mechanism is also provided. A programming device in conjunction with mechanisms 20, 21 and an illumination device for forming an electrostatic latent image on belt 12 effectively sends the developed image to transfer station C in time with the arrival of the copy sheet. ing. After the image is transferred to the sheet, the sheet is peeled off from the belt 12 by a peeling conveyor 23, and then conveyed by the peeling conveyor 23 to a fixing device 25, where the developed image on the sheet and the transferred xerographic image are removed. Permanently fixes the powder image to the sheet.

定着終了後、得られたコピーは複写機から丁合い装置２
４中へ送り出される力〜あるいは以下に述べる方法でコ
ピーシート取扱い機構２１へ送り返される。現像済み像
上に残留するトナー粒子、背景に付着したトナー粒子お
よびその他の転写されなかつたトナー粒子は、ベルト１
２でロール１４と１６の間のベルト走行路上の帯電装置
１３付近に配置してある清掃装置へ運ばれる。清掃装置
は回転刷子２６と粒子上の残留電荷を中和するためのコ
ロナ発生装置２７とから成り、ベルトから電気性に中和
されたトナー粒子を取除くための真空源と連結しており
、清掃後のベルトには次の像が形成される。次に第２，
３，４図について説明する。これらの図には定着装置２
５からコピーシートを受け取つて定着済みコピーをコピ
ーシート取扱い機構２１または丁合い装置２４のいずれ
かに送るようになつている反転一逆転機構を示してある
。反転一逆転機構は定着装置から定着済みコピーを受け
取つて丁合い装置へ搬送するようになつている第１搬送
装置３０を含む。複写装置を片面コピー製造用に利用す
る場合、シートは第２図に示すように搬送装置で直接丁
合い装置２４へ搬送される。両面コピーを作りたい場合
には、搬送装置３０上のコピーは偏向装置８２でそらさ
れて第３および４図に示すようなシート通路中へ移動さ
れる。偏向装置３２がシートをそらす位置にあるとき、
シートは送りロール３４のまわりを通り、ロール３４と
共働ロール３６とで形成するニツプを通つて搬送される
。シートはロール３４，３６で上方シート案内バツフル
４６と下方シート案内バツフル４８との間を通つて第２
送りロール対３８，４０へ送られ、ここからさらに搬送
機構４２（第１図参照）へ送ら汽この搬送機構４２によ
つてコピーシート取扱い機構２１へ送られる。所望の数
の片面コピーを作つてコピーシート取扱い機構２１へ送
つた後、コピーシート取扱い機構２１の作動を止めてコ
ピーシート取扱い機構２１を作動させることができる。
言うまでもなく、ロール３４のまわりから、送りロール
対３８，４０の間を通つた後のコピーシートは反転して
いる。すなわちコピーシート取扱い機構内のシートは上
面にコピーを有する。機械を再び付勢すると、コピーシ
ート取扱い機構２１から送り出されるシートは複写機を
通るとき前に述べたと同じ方法でシートの背面に複写さ
れる。After fixing, the obtained copy is transferred from the copying machine to the collating device 2.
4 or back to the copy sheet handling mechanism 21 in the manner described below. Toner particles remaining on the developed image, toner particles adhering to the background, and other toner particles that have not been transferred are removed from the belt 1.
2, it is transported to a cleaning device located near the charging device 13 on the belt running path between the rolls 14 and 16. The cleaning device consists of a rotating brush 26 and a corona generating device 27 for neutralizing the residual charge on the particles, coupled to a vacuum source for removing the electrically neutralized toner particles from the belt; The following image is formed on the belt after cleaning. Next, the second
Figures 3 and 4 will be explained. These figures show the fixing device 2.
An invert-reverse mechanism is shown adapted to receive copy sheets from 5 and forward the fused copies to either a copy sheet handling mechanism 21 or a collating device 24. The invert-reverse mechanism includes a first transport device 30 adapted to receive the fused copies from the fuser and transport them to the collate device. When the copying machine is used to produce single-sided copies, the sheets are conveyed directly to a collating device 24 by a conveying device, as shown in FIG. If it is desired to make a duplex copy, the copy on transport 30 is deflected by deflection device 82 into the sheet path as shown in FIGS. 3 and 4. When the deflection device 32 is in the sheet deflection position,
The sheet is conveyed around feed rolls 34 and through a nip formed by rolls 34 and cooperating rolls 36. The sheet is passed through the rolls 34 and 36 between the upper sheet guide baffle 46 and the lower sheet guide buffle 48 to the second
The sheet is sent to a pair of feed rolls 38, 40, and from there to a conveyance mechanism 42 (see FIG. 1), and is then conveyed to a copy sheet handling mechanism 21 by the conveyance mechanism 42. After the desired number of single-sided copies have been made and sent to copy sheet handling mechanism 21, operation of copy sheet handling mechanism 21 can be stopped and copy sheet handling mechanism 21 can be activated.
Needless to say, after passing around roll 34 and between the pair of feed rolls 38, 40, the copy sheet is inverted. That is, the sheets in the copy sheet handling mechanism have a copy on the top surface. When the machine is energized again, the sheet being fed from the copy sheet handling mechanism 21 is copied onto the back of the sheet in the same manner as previously described as it passes through the copier.

定着装置から出た両面コピーは搬送装置３０で第４図に
示すようにロール３４のまわりおよびロール３４と３６
の間を通つて搬送される。両面コピーをつくるために機
械が作動すると同時に、適当なシート停止装置４４が上
昇して上方案内バツフル４６と下方案内バツフル４８と
の間のシート通路内に入る。送りロール４０は上方バツ
フル４６に取付けてあるので、バツフル４６が押上げら
れると送りロール４０は下側送りロール３８から離され
る。従つて、ロール対３８，４０の間へ送られて来たシ
ートはこのロール対による前進駆動作用を受けない。シ
ート停止装置４４はドーナツ状すなわちリング状の局部
的および体積弾性率の非常に低い可撓性ウレタンフオー
ムのような弾性材料でできている。このフオームリング
は軽量シートを損傷せず、また何ら調節せずに大きい質
量範囲（６．０：１）および十分な長さ範囲（約１．２
７ｃｍのシート長さ変化）に十分耐え得る柔軟性を持つ
ている。このフオームリングが元の円形に戻る復元力を
利用してシートをロール３６と共働ロール５０との間に
形成されるニツプ中へシートを押し込み、シートの後端
はロール３６によつてニツプ中に引き入れられる。ロー
ル３６と５０とは発泡ポリウレタンのような高摩擦材料
でできているので、移動するシートを確実に停止装置４
４に向つておよび移動装置４４から離れる方向へ送るこ
とができる。２枚のシートが同時に反転領域内において
互に反対方向に移動するような状態が生じるが、このと
きロール３６，５０は２枚のシート間に生じる引張力を
越えて、停止装置４４から離れる方向にシートを確実に
送ることができる。The double-sided copy that comes out of the fixing device is transferred to the conveying device 30 around the rolls 34 and around the rolls 34 and 36 as shown in FIG.
transported through the space. At the same time the machine operates to make a duplex copy, the appropriate sheet stop 44 is raised into the sheet path between the upper guide buffle 46 and the lower guide buffle 48. Since the feed roll 40 is attached to the upper buffle 46, when the buffle 46 is pushed up, the feed roll 40 is separated from the lower feed roll 38. Therefore, the sheet fed between the pair of rolls 38, 40 is not driven forward by this pair of rolls. The seat stop device 44 is made of a resilient material such as a flexible urethane foam having a toroidal or ring shape and very low local and bulk modulus. This form ring provides a large mass range (6.0:1) and sufficient length range (approximately 1.2
It has sufficient flexibility to withstand changes in sheet length of 7 cm. Using the restoring force of this form ring to return to its original circular shape, the sheet is pushed into the nip formed between the roll 36 and the cooperating roll 50, and the rear end of the sheet is pushed into the nip by the roll 36. be drawn into. Rolls 36 and 50 are made of a high friction material, such as foamed polyurethane, to ensure that the moving sheet is securely stopped by stop device 4.
4 and away from the moving device 44. A situation arises in which two sheets are simultaneously moved in opposite directions in the reversal region, and the rolls 36, 50 overcome the tension created between the two sheets and move away from the stop device 44. sheets can be reliably sent to

上記実施例では、片面複写済みコピーを表を下にして受
け入れるには前述の米国特許第３８３０５９０号中に記
載した型の丁合い装置が適している。In the embodiment described above, a collating device of the type described in the aforementioned U.S. Pat. No. 3,830,590 is suitable for accepting single-sided copies face down.

言い換えると、丁合い装置に入来する１枚の片面コピー
は丁合い装置のトレー中に表面を下にして置かれるので
、第１ページのコピーの裏面に第２ページのコピー面が
重なり、正しいぺージの向きを持つ照合された本または
報告書が得られる。かくして、両面コピー用にこの丁合
い装置を用いる場合には、やはり第１ページは表面を下
にして丁合い装置に送らなければならない。両面コピー
の場合、定着装置から第２ページが下向きで出て来るの
で、反転装置でコピーを反転して第１ページを下向きに
してから丁合い装置へ送る。第３ページと第４ページが
複写されている次のシートは第３ページを下に向けて丁
合い装置ヘ送ら抵以下このようにして正しいページ順で
シートをトレー中へ送る。以上述べた反転一逆転装置は
、シート重量や通常起こりうるシートのサイズの変化に
は関係なく、送られて来るシートを損傷せずに非常に高
速度の操作を行うことができる。In other words, each single-sided copy that enters the collation machine is placed face down in the collation machine tray so that the second page copy side overlaps the back side of the first page copy and the correct A collated book or report with page orientation is obtained. Thus, when using this collating device for duplex copying, the first page must still be fed face down to the collating device. In the case of double-sided copying, the second page comes out of the fixing device face down, so a reversing device inverts the copy so that the first page faces down before sending it to the collating device. The next sheet, on which pages 3 and 4 have been copied, is sent to the collating device with the third page facing down, and in this way the sheets are fed into the tray in the correct page order. The invert-invert device described above is capable of very high speed operations without damaging the incoming sheet, regardless of sheet weight or normally occurring changes in sheet size.

また、図面から明らかなように、本発明の機構の反転部
分は停止装置４４とロール５０とを単に付加するだけで
得られ、従つて複写機中の僅かな空間を利用するだけで
簡単でしかも有効な反転装置が得られる。Also, as is clear from the drawings, the reversible portion of the mechanism of the present invention can be obtained by simply adding the stop device 44 and the roll 50, and therefore is simple and requires only a small amount of space in the copying machine. An effective reversing device is obtained.

以上、本発明の好ましい実施例について説明したが、本
発明がこれらの実施例によつて限定されるものでないこ
とは当然である。Although preferred embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to these embodiments.

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

第１図は静電複写機および丁合い装置を含む静電複写装
置の概略図であり、第２図は第１図の複写装置とともに
用いられる本発明の反転一逆転機構の概略図であり、複
写機で作られた片面コピーを照合のため直接丁合い装置
へ送るようになつている上記機構の各構成々分の第１位
置を示しており、第３図は複写機から送られて来る片面
コピーをそらし、両面コピーを作るための次の処理に備
えて複写機内の両面コピートレーへ送り戻すため各構成
々分が第２位置になつている本発明の反転一逆転機構の
概略図であり、第４図は各構成々分の位置が完成した両
面コピーを搬送通路から偏向し、正しいページ順に製本
する丁合い装置へ送るためこのコピーを反転させるよう
な位置になつている複写装置中で使用する本発明の反転
一逆転機構の概略図である。 １９・・・・・・シート搬送機構、２０・・・・・・第
１コピーシート取扱い機構、２１・・・・・・第２コピ
ーシート取扱い機構、３２・・・・・・偏向装置、４４
・・・・・・停止装置。1 is a schematic diagram of an electrostatic copying machine including an electrostatic copying machine and a collating device, and FIG. 2 is a schematic diagram of an invert-reverse mechanism of the present invention for use with the copy machine of FIG. Figure 3 shows the first position of each component of the above mechanism, which is adapted to send single-sided copies made by the copier directly to a collating device for verification; 1 is a schematic diagram of the invert-reverse mechanism of the present invention with each component in a second position for deflecting a single-sided copy and feeding it back to a duplex copy tray within a copier for subsequent processing to make a double-sided copy; FIG. Figure 4 shows a copying machine in which the positions of each component are such that a completed double-sided copy is deflected from the conveyance path and reversed in order to be sent to a collating device that binds the copies in the correct page order. FIG. 2 is a schematic diagram of the reversal-reversal mechanism of the present invention used in the present invention. 19...Sheet conveyance mechanism, 20...First copy sheet handling mechanism, 21...Second copy sheet handling mechanism, 32...Deflection device, 44
...Stopping device.

Claims (1)

【特許請求の範囲】[Claims] １ 片面コピー及び両面コピーを作るための複写装置に
おいて、コピーを作るためにシートを順次に送る第１シ
ート取扱い装置及び第２シート取扱い装置と、コピーシ
ートを、前記第１シート取扱い装置から複写装置の外部
の所定位置へ延びる第１通路を通して、前記外部の所定
位置へ搬送する搬送装置と、前記第１通路の途中の第１
位置に配置され、第１通路上の、片面に像を有するコピ
ーシートを、前記第１位置から前記第２シート取扱い装
置に至る第２通路に向けるための偏向装置と、該偏向装
置によつて偏向されたコピーシートを前記第２通路内へ
送り込むように配置された、第１送りロールと第２送り
ロールとで成る第１送りロール対と、該第１送りロール
対より下流の第２通路に配置され、相互に離接しうるよ
うに可動に取付けられた、第３送りロールと第４送りロ
ールとで成る第２送りロール対と、前記第２シート取扱
い装置から前記第１位置より上流の第１通路上の第２位
置へ至る第３通路に沿つて、コピーシートを第２シート
取扱い装置から第１通路へ戻すコピーシート戻し装置と
、前記第２通路上の、前記第２送りロール対のすぐ下流
側に配置され、該第２通路中へ移動可能になつていて該
通路中に位置した場合に該通路を通るコピーシートの前
端と接触して該シートを停止させ且つその弾性により該
シートの移動方向を逆にするように作用する、弾性材で
成る停止部材と、該停止部材が第２通路中に移動したと
き第２送りロール対の第３ロール及び第４ロールを相互
に分離させて該第２送りロール対のシート送り能力を打
消すように停止部材と連動する部材と、前記停止部材と
接触する端部と反対側のコピーシートの端部と接触して
該シートを前記第１位置より下流の第１通路中へ送つて
複写装置外部の前記所定位置へシートを送るようにする
送り装置と、から成ることを特徴とする複写装置。1. A copying device for making single-sided copies and double-sided copies, including a first sheet handling device and a second sheet handling device that sequentially send sheets to make copies, and a copying device that transfers copy sheets from the first sheet handling device to the copying device. a conveying device for conveying the material to the predetermined location outside the device through a first path extending to a predetermined location outside the device;
a deflection device for directing a copy sheet located at a first path having an image on one side onto a second path from the first location to the second sheet handling device; a first feed roll pair comprising a first feed roll and a second feed roll arranged to feed a deflected copy sheet into the second path; and a second path downstream of the first feed roll pair. a second feed roll pair consisting of a third feed roll and a fourth feed roll, which are disposed at and movably attached so as to be able to move toward and away from each other; and a second feed roll pair upstream from the first position from the second sheet handling device a copy sheet return device for returning copy sheets from a second sheet handling device to the first path along a third path to a second position on the first path; and a pair of second feed rolls on the second path. is disposed immediately downstream of the second passageway and is movable into the second passageway so that when located in the passageway it contacts the leading edge of a copy sheet passing through the passageway and stops the copying sheet and, by virtue of its elasticity, a stop member of elastic material operative to reverse the direction of movement of the sheet; and a stop member of elastic material that separates the third and fourth rolls of the second pair of feed rolls from each other when the stop member moves into the second path. a member interlocking with the stop member so as to cancel the sheet feeding ability of the second pair of feed rolls; A copying apparatus comprising: a feeding device configured to feed a sheet into a first path downstream from a first position and to the predetermined position outside the copying apparatus.
JP49138282A 1973-12-28 1974-12-02 double-sided copying device Expired JPS599053B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00429252A US3856295A (en) 1973-12-28 1973-12-28 Inverter-reverser for a reproduction machine
US429252 1989-10-27

Publications (2)

Publication Number Publication Date
JPS5099553A JPS5099553A (en) 1975-08-07
JPS599053B2 true JPS599053B2 (en) 1984-02-29

Family

ID=23702460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49138282A Expired JPS599053B2 (en) 1973-12-28 1974-12-02 double-sided copying device

Country Status (10)

Country Link
US (1) US3856295A (en)
JP (1) JPS599053B2 (en)
AU (1) AU7548874A (en)
BR (1) BR7409371A (en)
CA (1) CA1024925A (en)
DE (1) DE2448854C3 (en)
FR (1) FR2256038B1 (en)
GB (1) GB1487954A (en)
IT (1) IT1028054B (en)
NL (1) NL7414928A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS632742U (en) * 1986-06-23 1988-01-09
JPH0325358B2 (en) * 1985-03-28 1991-04-05 Takeyoshi Sunakawa
JPH0332394Y2 (en) * 1985-09-11 1991-07-09

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999852A (en) * 1973-01-17 1976-12-28 Canon Kabushiki Kaisha Copying apparatus capable of both-side printing
US4017173A (en) * 1974-01-11 1977-04-12 Canon Kabushiki Kaisha Copying apparatus for copying a plurality of original surfaces with a single scan
US3966194A (en) * 1974-03-28 1976-06-29 Agfa-Gevaert, A.G. Apparatus for manipulating finished reproductions in copying machines
DE7422818U (en) * 1974-07-04 1976-10-14 Windmoeller & Hoelscher, 4540 Lengerich DEVICE FOR REVERSING THE DIRECTION OF RUNNING OF HOSE SECTIONS IN BAGGING MACHINERY
US3948505A (en) * 1974-11-01 1976-04-06 Control Data Corporation Document turn-around sorter/stacker
US3942785A (en) * 1974-11-25 1976-03-09 Xerox Corporation Self-actuating sheet inverter reverser
US3944212A (en) * 1974-11-25 1976-03-16 Xerox Corporation Sheet reversing mechanism
US4098551A (en) * 1975-02-13 1978-07-04 Canon Kabushiki Kaisha Both side copying machine
US4080060A (en) * 1975-08-01 1978-03-21 Addressograph-Multigraph Corporation Copy system
US4019435A (en) * 1975-08-21 1977-04-26 Addressograph Multigraph Corporation Sheet inverting
US4050805A (en) * 1975-11-18 1977-09-27 Eastman Kodak Company Electrophotographic copying apparatus for two-sided copying
US4040616A (en) * 1976-01-14 1977-08-09 Xerox Corporation Sheet turn around/inverter
USRE32541E (en) * 1976-01-15 1987-11-10 Xerox Corporation Fluidic feeding of documents to an exposure station
CA1083655A (en) * 1976-06-01 1980-08-12 Gary B. Gustafson Apparatus for producing collated copies from two sided originals
US4116558A (en) * 1977-02-09 1978-09-26 Xerox Corporation Duplex system and method for pre-collation copiers
US4174905A (en) * 1977-02-14 1979-11-20 Eastman Kodak Company Method and apparatus for producing duplex copies
JPS53149332A (en) * 1977-06-01 1978-12-26 Oriental Photo Ind Co Ltd Sheettshaped photographic paper guiding device
US4512651A (en) * 1977-07-05 1985-04-23 Eastman Kodak Company Collating document feeder and reproduction apparatus having copy duplexing capabilities
US4459013A (en) * 1977-08-18 1984-07-10 Xerox Corporation Duplex/simplex precollation copying system
US4162844A (en) * 1977-08-30 1979-07-31 Xerox Corporation Reproduction machine with duplex image shift
US4125325A (en) * 1977-08-30 1978-11-14 Xerox Corporation Automatic duplex control system for a reproduction machine
US4214740A (en) * 1978-05-02 1980-07-29 Xerox Corporation Sheet reversing mechanism
JPS54149636A (en) * 1978-05-16 1979-11-24 Ricoh Co Ltd Copier
US4191465A (en) * 1978-07-03 1980-03-04 Eastman Kodak Company Apparatus for producing simplex of duplex copies
US4272181A (en) * 1978-12-29 1981-06-09 International Business Machines Corporation Electrophotographic printer with duplex printed sheet output
US4493483A (en) * 1979-01-31 1985-01-15 Xerox Corporation Inverter-reverser for a reproduction machine
JPS55105258A (en) * 1979-02-08 1980-08-12 Canon Inc Both side image forming device
US4264187A (en) * 1979-05-14 1981-04-28 International Business Machines Corporation Document handler
US4234180A (en) * 1979-06-27 1980-11-18 Xerox Corporation Recirculating document handler configuration
US4238126A (en) * 1979-08-31 1980-12-09 Xerox Corporation Recirculating simplex/duplex document handler
JPS5691249A (en) * 1979-12-25 1981-07-24 Canon Inc Copying machine which permits one-side and both-side copying
US4673176A (en) * 1980-10-02 1987-06-16 Xerox Corporation Soft nip damping inverter
BR8105543A (en) * 1980-09-02 1982-05-18 Xerox Corp SUBSTRATE INVERTER; COPIER INVERTER MECHANISM; PROCESS TO INVERT A SUBTRACT; THREE ROLLER INVERTER MECHANISM; AND PROCESS TO REVERSE THE LEAF DIRECTION
DE3138220A1 (en) * 1980-09-27 1982-05-06 Canon K.K., Tokyo Paper transporting device
US4348101A (en) * 1980-09-30 1982-09-07 Sperry Corporation Duplex printing apparatus
JPS587971A (en) * 1981-07-07 1983-01-17 Canon Inc Both-sided picture forming device
US4431303A (en) * 1981-11-04 1984-02-14 Xerox Corporation Sheet handling apparatus for use with a very high speed duplicator
JPS58102538U (en) * 1981-12-29 1983-07-12 富士写真フイルム株式会社 Sheet material conveyance mechanism
US4466607A (en) * 1982-03-08 1984-08-21 The Mead Corporation Sheet inverting device
US4487506A (en) * 1982-08-23 1984-12-11 Xerox Corporation Reversing roll inverter with bypass capability
JPS5875163A (en) * 1982-09-08 1983-05-06 Canon Inc Copying machine for serving both for one side and both sides
GB2128963B (en) * 1982-10-22 1985-10-02 Mead Corp Sheet inverting device
CA1214820A (en) * 1982-11-22 1986-12-02 Richard C. Schenk Copy sheet inverter with adjustable stop mechanism
JPS5977454A (en) * 1983-05-13 1984-05-02 Canon Inc Both-side copying controller
GB8315734D0 (en) * 1983-06-08 1983-07-13 Xerox Corp Sheet reversing apparatus
US4607942A (en) * 1983-09-19 1986-08-26 Mita Industrial Co., Ltd. Electrostatic copying apparatus
JPS60118569A (en) * 1983-11-25 1985-06-26 Canon Inc Paper sheet discharge device
JPS60238856A (en) * 1984-05-11 1985-11-27 Toshiba Corp Accumulating device
JPS6180755U (en) * 1984-11-01 1986-05-29
JPS61119549A (en) * 1984-11-13 1986-06-06 Toshiba Corp Paper-sheet reversing apparatus
JPS6188956U (en) * 1984-11-17 1986-06-10
US4579325A (en) * 1984-12-06 1986-04-01 Xerox Corporation Compact document handling system
US4645195A (en) * 1985-07-03 1987-02-24 Eastman Kodak Company Sheet-registration and feeding apparatus
US4660963A (en) * 1985-12-30 1987-04-28 Xerox Corporation Auto duplex reproduction machine
US4708468A (en) * 1985-12-30 1987-11-24 Xerox Corporation Self adjusting paper guide
US4708462A (en) * 1985-12-30 1987-11-24 Xerox Corporation Auto duplex reproduction machine
US4699367A (en) * 1986-02-24 1987-10-13 Eastman Kodak Company Sheet turnover mechanism
US4699365A (en) * 1986-05-13 1987-10-13 Eastmak Kodak Company Recirculating document feeder
US4814798A (en) * 1987-06-09 1989-03-21 Kentek Information Systems, Inc. Combined electrographic printer, copier, and telefax machine with duplex capability
US4867437A (en) * 1988-02-26 1989-09-19 The Psychological Corporation Method and apparatus for stacking sheet articles in their original order in a selected one of a pair of hoppers
DE3827604A1 (en) * 1988-08-13 1990-02-15 Kodak Ag Copier
US4987455A (en) * 1989-11-22 1991-01-22 Eastman Kodak Company Multicolor imaging apparatus
US4994858A (en) * 1989-11-22 1991-02-19 Eastman Kodak Company Electrostatographic apparatus for forming multicolor images on a receiving sheet
JP2005077967A (en) * 2003-09-03 2005-03-24 Minolta Co Ltd Image forming apparatus
US7511864B2 (en) * 2004-05-17 2009-03-31 Xerox Corporation Image scanning apparatus that scans both sides of an input sheet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615129A (en) * 1968-08-12 1971-10-26 Xerox Corp Duplexing xerographic reproducing machine with a copy sheet reversing station
US3645615A (en) * 1969-07-03 1972-02-29 Xerox Corp Copying apparatus
US3672765A (en) * 1968-03-26 1972-06-27 Eastman Kodak Co Apparatus for making two-sided copies from two images on an original

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US700722A (en) * 1902-01-13 1902-05-27 Union Paper Bag Machine Co Paper-bag-delivery device.
US2901246A (en) * 1957-04-17 1959-08-25 Ibm Sheet turning means
FR1458234A (en) * 1965-07-12 1966-03-04 Bull General Electric Improvements to card transport devices, more particularly applicable to card recording machines
US3700231A (en) * 1970-09-21 1972-10-24 Copystatics Mfg Corp Document turn-around device for copying machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672765A (en) * 1968-03-26 1972-06-27 Eastman Kodak Co Apparatus for making two-sided copies from two images on an original
US3615129A (en) * 1968-08-12 1971-10-26 Xerox Corp Duplexing xerographic reproducing machine with a copy sheet reversing station
US3645615A (en) * 1969-07-03 1972-02-29 Xerox Corp Copying apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0325358B2 (en) * 1985-03-28 1991-04-05 Takeyoshi Sunakawa
JPH0332394Y2 (en) * 1985-09-11 1991-07-09
JPS632742U (en) * 1986-06-23 1988-01-09

Also Published As

Publication number Publication date
IT1028054B (en) 1979-01-30
GB1487954A (en) 1977-10-05
NL7414928A (en) 1975-03-27
CA1024925A (en) 1978-01-24
BR7409371A (en) 1976-05-18
DE2448854A1 (en) 1975-07-10
US3856295A (en) 1974-12-24
FR2256038B1 (en) 1978-08-11
JPS5099553A (en) 1975-08-07
FR2256038A1 (en) 1975-07-25
DE2448854C3 (en) 1981-01-29
AU7548874A (en) 1976-05-20
DE2448854B2 (en) 1980-05-14

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