JPS59200272A - Copying device - Google Patents

Copying device

Info

Publication number
JPS59200272A
JPS59200272A JP58074806A JP7480683A JPS59200272A JP S59200272 A JPS59200272 A JP S59200272A JP 58074806 A JP58074806 A JP 58074806A JP 7480683 A JP7480683 A JP 7480683A JP S59200272 A JPS59200272 A JP S59200272A
Authority
JP
Japan
Prior art keywords
original
document
size
reference position
contact glass
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
JP58074806A
Other languages
Japanese (ja)
Inventor
Yasuyuki Nukaya
糠谷 康之
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 JP58074806A priority Critical patent/JPS59200272A/en
Publication of JPS59200272A publication Critical patent/JPS59200272A/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
    • G03G15/60Apparatus which relate to the handling of originals
    • G03G15/602Apparatus which relate to the handling of originals for transporting

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Conveyance By Endless Belt Conveyors (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To stop an original in a reference position simply without a synchronizing means by setting preliminarily the time of carrying from a sensor position to the reference position in accordance with an original size. CONSTITUTION:An original automatic supply device having a paper feeding part, which carries an original onto a contact glass, and a carrying member placed on the contact glass is provided, and an original stop reference position is set in the contact glass end part side farthest from the paper feeding part. Sensors 9a-9d which detect the original size in case of detection of the front end of the original are provided, and the time of original carrying from the sensor position to the reference position is set preliminarily in accordance with the original size. A carrying time control means which changes the original carrying time in accordance with the detected original size is provided to stop the original in the reference position simply.

Description

【発明の詳細な説明】 技術分野 本発明は、原稿自動供給装置を備えた複写装置に関する
DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a copying machine equipped with an automatic document feeder.

従来技術 ます、第1図は複写機本体1に取付けられた原稿自動供
給装置2の概略を示すもので、給送スタートにより昼稿
テーブル3上に積載された原稿4は呼出コロ5により分
離ローラ6部分まで下側の数枚が送られ、この分離ロー
ラ6の摩擦分離作用により最下位の一枚だけに分離され
てピンチローラ7に挟まれる。ここで、原稿4の先端が
OFFセンサー8により検知されると、呼出コロ5、分
離ローラ6の駆動は停止される(もっとも、呼出コロ5
、分離ローラ6はワンウェイクラッチ等により駆動停止
後も原稿4とつれ回りする)。そして、ピンチローラ7
により給紙される原稿4の先端が先端検知センサー9に
より検知されると、この先端検知センサー9の位置から
コンタク1−ガラス10上の基僧位置Poまでの到達時
間をパルスエンコータ、パルスセンサーによりカラン1
−シて、所定のカウント数でコンタクトガラス1o上の
搬送ベルト1■に送り込まれ、原稿4は基準位置POで
停止することになる。ここで、露光が行なわれ、露光が
終了すると原稿4は搬送ベルト12、排紙ローラ12に
よりトレイ13に排紙される。
FIG. 1 schematically shows an automatic document feeder 2 attached to a copying machine main body 1. A document 4 stacked on a daytime document table 3 at the start of feeding is transferred to a separation roller by a calling roller 5. The lower several sheets are fed up to section 6, and due to the frictional separation action of separation roller 6, only the lowest sheet is separated and sandwiched between pinch rollers 7. Here, when the leading edge of the document 4 is detected by the OFF sensor 8, the driving of the pickup roller 5 and the separation roller 6 is stopped (although the pickup roller 5
, the separation roller 6 continues to rotate with the document 4 even after the drive is stopped by a one-way clutch or the like). And pinch roller 7
When the leading edge of the document 4 fed by the leading edge detection sensor 9 is detected by the leading edge detection sensor 9, the pulse encoder and the pulse sensor determine the arrival time from the position of the leading edge detection sensor 9 to the base position Po on the contactor 1-glass 10. by Karan 1
- Then, the document 4 is fed onto the conveyor belt 12 over the contact glass 1o at a predetermined count, and the document 4 is stopped at the reference position PO. Here, exposure is performed, and when the exposure is completed, the original 4 is ejected onto the tray 13 by the conveyance belt 12 and the ejection roller 12.

なお、14は手差し用テーブル、15は手差し挿入口、
16はターンローラである。
In addition, 14 is a table for manual feed, 15 is a manual feed slot,
16 is a turn roller.

ところで、給紙部側における負荷が大きいため、それに
打ち勝つようかなり大きなものとなる。一方、コンタク
トガラス10側における搬送ベルト11の搬送圧P2は
、コンタクトガラス10と原稿4との静電気による密着
等を考慮するとそれ程大きい圧力とすることはできず、
Pi>P2という状態となる。このように、搬送圧が搬
送ベルト11側の方が小さいので、原稿4の後端がピン
チローラ7を抜けるまでは原稿4の速度はこのピンチロ
ーラ7の速度となり、後端がピンチローラ7を抜けた後
初めて搬送ベルト11による速度となる。つまり、第2
図中の距離Lpは原稿4がピンチローラ7の速度で送ら
れる距離を示し、距離LBは原稿4が搬送ベルト11の
速度で送られる距離を示す。よって、原稿4のサイズが
異なればピンチローラ7によって送られる時間、搬送ベ
ルト11によって送られる時間が各々異なることになる
By the way, since the load on the paper feeding section side is large, the load must be considerably large to overcome it. On the other hand, the conveying pressure P2 of the conveying belt 11 on the contact glass 10 side cannot be set to such a high pressure considering the close contact between the contact glass 10 and the document 4 due to static electricity, etc.
The state becomes Pi>P2. In this way, since the conveyance pressure is smaller on the conveyor belt 11 side, the speed of the document 4 is the same as the speed of the pinch roller 7 until the trailing edge of the document 4 passes through the pinch roller 7. The speed achieved by the conveyor belt 11 is achieved only after the conveyor belt 11 is removed. In other words, the second
In the figure, distance Lp indicates the distance that the original 4 is sent at the speed of the pinch roller 7, and distance LB shows the distance that the original 4 is sent at the speed of the conveyor belt 11. Therefore, if the size of the original document 4 is different, the time for feeding by the pinch roller 7 and the time for feeding by the conveyor belt 11 will be different.

この場合、原稿4の停止位置が原稿サイズによって異な
ったり搬送途中で原稿たるみが生じないよう、従来は、
先端検知センサー9で検知してから裁準位置Poまでの
搬送時間を原稿サイズに関係なく常に一定としているも
のである。このためには、ビンチロ−ラフの速度と搬送
ベル1−11の速度とを同期させなければならず、両者
の駆動系を分割してサーボ制御によるモータを2個用い
る等の手段を講じているものであり、コス1−が高く複
雑化するものである。
In this case, in order to prevent the stopping position of the original 4 from changing depending on the original size or from causing the original to sag during transportation, conventional methods were used.
The conveyance time from detection by the leading edge detection sensor 9 to the leveling position Po is always constant regardless of the document size. For this purpose, it is necessary to synchronize the speed of the vinyl rough and the speed of the conveyor bell 1-11, and measures such as dividing the drive systems for both and using two servo-controlled motors are taken. However, the cost is high and complicated.

目的 本発明は、このような点に鑑みなされたもので、給紙部
側と搬送部材側との速度を同期させる必要なく安価にし
て原稿を基準位置に停止させることがてきる複写装置を
得ることを目的とする。
Purpose The present invention has been made in view of the above points, and provides a copying apparatus that can stop a document at a reference position at a low cost without the need to synchronize the speeds of the paper feed section and the conveyance member. The purpose is to

構成 本発明の一実施例を第3図ないし第7図に基づ    
゛いて説明する。第1図で示した部分と同一部分は同一
符号を用い説明も省略する。本実施例では、あるサイズ
の原稿4a用の先端検知センサー9a、原稿4b用の先
端検知センサー9b、原稿4c用の先端検知センサー9
c、原稿4d用の先端検知センサー9dを設け、原稿4
の先端検知とともにその原稿サイズを検知するものであ
る。また、ピンチローラ7および搬送ベル1−11はモ
ータ17により駆動さjしるもので、モータプーリ18
、ベル1へ19、プーリ20.21、ベル1へ22、プ
ーリ23によりピンチローラ7へ伝達され、ピンチロー
ラ7の軸24上のプーリ25、ベル1へ26、プーリ2
7を介して搬送ベル1〜11用のローラ28に伝達され
る。軸24上にはクラッチブレーキュニラ]−29が設
けられている。また、プーリ20.21用の軸30上に
はパルスエンコータ3Iが設けられ、その回転パルス数
をカラン1−するパルスセンサー32が対向配置されて
いる。
Structure An embodiment of the present invention is shown in FIGS. 3 to 7.
Let me explain. Components that are the same as those shown in FIG. 1 are designated by the same reference numerals, and description thereof will be omitted. In this embodiment, a leading edge detection sensor 9a for a document 4a of a certain size, a leading edge detection sensor 9b for a document 4b, and a leading edge detection sensor 9 for a document 4c of a certain size are used.
c. A leading edge detection sensor 9d for the document 4d is provided, and the document 4
This is to detect the leading edge of the document and the size of the document. Furthermore, the pinch roller 7 and the conveyance bell 1-11 are driven by a motor 17, and the motor pulley 18
, 19 to bell 1, pulley 20.21, 22 to bell 1, transmitted to pinch roller 7 by pulley 23, pulley 25 on shaft 24 of pinch roller 7, 26 to bell 1, pulley 2
7 to the rollers 28 for the conveyor bells 1 to 11. A clutch breaker 29 is provided on the shaft 24. Further, a pulse encoder 3I is provided on the shaft 30 for the pulleys 20 and 21, and a pulse sensor 32 for measuring the number of rotation pulses thereof is arranged opposite to the shaft encoder 3I.

このような構成において、原稿4がピンチローラ7によ
り給紙され先端検知センサー9により先端が検知される
際、その原稿サイズも検知される。
In such a configuration, when the original 4 is fed by the pinch roller 7 and the leading edge is detected by the leading edge detection sensor 9, the size of the original is also detected.

たとえば、先端検知センサー9aのみが検知すれば原稿
4aサイズであり、先端検知センサー9a、9bが検知
すれば原稿4aサイズというようになる。そして、この
原稿サイズ検知に応じて原稿4の搬送時間を変更させる
ものである。すなわち、各原稿48〜4d毎にセンサー
9位置がら基準位置Paまでの搬送時間(パルス数)が
メモリ等による搬送時間制御手段に予め設定記憶されて
いるものであり、検知された原稿サイズに応じてそのサ
イズ用の搬送時間に自動的に変更されるものである。
For example, if only the leading edge detection sensor 9a detects the document 4a size, if the leading edge detection sensors 9a and 9b detect the document 4a size, the document 4a size is detected. Then, the conveyance time of the original 4 is changed in accordance with this original size detection. That is, the conveyance time (number of pulses) from the sensor 9 position to the reference position Pa for each document 48 to 4d is preset and stored in a conveyance time control means such as a memory, and is adjusted according to the detected document size. The transport time will be automatically changed to the one for that size.

たとえは、1パルス当たりのビンチロ−ラフによる原稿
4の移動量をa、Iパルス当たりのピンチローラ7によ
る原稿4の移動量をす、ピンチローラ7・先端検知位置
9間距離をり、o、先端検知センサー9・基1(Q位置
Pa間距離をLlとし、送り方向原稿長さが]i、12
の原稿4a、4bについて考えてみる。まず、原稿4a
の場合、必要なパルス数11は第6図から明らかなよう
にn t =(11−Lo )/ a + ((Lt 
+Lo )−11) / b と設定される。一方、原稿4bの場合、必要なパルス数
n2は第7図から明らかなようにn2=(12−Lo)
/a+ ((Lt +Lo)−12) / b と設定される。原稿4c、4dの場合も同様であり、そ
のパルス数03、n4が設定される。したがって、原稿
サイズ検知に基づきその原稿サイズに必要なパルス数、
つまり搬送時間で原稿を搬送させるものである。パルス
数のカウントはパルスセンサー32により行なわれる。
For example, the amount of movement of the original 4 by the pinch roller per one pulse is a, the amount of movement of the original 4 by the pinch roller 7 per I pulse is the distance between the pinch roller 7 and the leading edge detection position 9, and o. Leading edge detection sensor 9/base 1 (distance between Q position Pa is Ll, document length in feeding direction] i, 12
Consider manuscripts 4a and 4b. First, manuscript 4a
In the case of 11, the required number of pulses is nt = (11-Lo)/a + ((Lt
+Lo)-11)/b is set. On the other hand, in the case of the original 4b, the required number of pulses n2 is n2=(12-Lo) as is clear from FIG.
/a+ ((Lt +Lo)-12) /b is set. The same applies to the originals 4c and 4d, and the pulse numbers 03 and n4 are set. Therefore, based on the document size detection, the number of pulses required for the document size,
In other words, the document is conveyed during the conveyance time. The pulse sensor 32 counts the number of pulses.

ぞして、その原稿ナイスに応したパルス数をカラン1−
シたら、クラッチブレーキュニン1へ29を作用させて
モータ17との連結を191つとともに軸24にブレー
キをかけてピンチローラ7、搬送ベルhllを停止させ
原稿4を基j(li位置に停止させるものである。
Then, set the number of pulses corresponding to the niceness of the document.
Then, act on the clutch brake lever 29 to brake the connection with the motor 17 and the shaft 24 to stop the pinch roller 7 and conveyance bell hll, and stop the document 4 at the base j (li position). It is something that makes you

したがって、本実施例によれば、原稿サイズが検知され
、ぞの原稿サイズに応じて原稿の搬送時間が変更される
ので、ピンチローラ7と搬送ベル1−11との速度を同
期させるといった複雑な手段を用いることなく、原稿4
をそのサイズが異なっても常に基準位置に停止させるこ
とができる。
Therefore, according to this embodiment, the document size is detected and the document conveyance time is changed according to the respective document size, so that complicated operations such as synchronizing the speeds of the pinch roller 7 and the conveyance bell 1-11 are required. Manuscript 4 without using any means
can always be stopped at the reference position even if their sizes are different.

なお、本実施例では先端検知センサー9a〜9dがサイ
ズ検知も兼用するが、これらをサイズ検知用とし、先端
検知センサー4aのみ先端検知を兼用させてもよい。
In this embodiment, the tip detection sensors 9a to 9d also serve as size detection, but they may also be used for size detection, and only the tip detection sensor 4a may serve as tip detection.

効果 本発明は、上述したように構成したので、高価・複雑な
同期手段を用いることなく、簡単に原稿を基準位置に停
止させることができるものである。
Effects Since the present invention is configured as described above, the document can be easily stopped at the reference position without using expensive and complicated synchronization means.

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

第1図は概略側面図、第2図は概略側面図、第3図は本
発明の一実施例を示す説明図、第4図は平面図、第5図
は側面図、第6図および第7図は説明用の概略側面図で
ある。 4・・原稿、7・・ピンチローラ(り紙部)、98〜9
d・・先端検知センサー(センサー)、10・・・コン
タクトガラス、11・・・搬送ベルト(搬送部材)出 
願 人  株式会社 リ コ −
FIG. 1 is a schematic side view, FIG. 2 is a schematic side view, FIG. 3 is an explanatory diagram showing an embodiment of the present invention, FIG. 4 is a plan view, FIG. 5 is a side view, FIG. FIG. 7 is a schematic side view for explanation. 4. Manuscript, 7. Pinch roller (paper section), 98-9
d...Tip detection sensor (sensor), 10...Contact glass, 11...Conveyance belt (conveyance member) exit
Applicant Rico Co., Ltd. −

Claims (1)

【特許請求の範囲】[Claims] 原稿をコンタク1〜ガラス上に搬送させる給紙部とコン
タクトガラス上に位置する搬送部材とを有する原稿自動
供給装置を備え給紙部から最も遠いコンタク1−ガラス
端部側に原稿停止基7(ハ位置が設定さ、tシた複写装
置において、原稿の先端検知に際してその原稿のサイズ
を検知するセンサーを設け、原稿サイズに応じてセンサ
ー位置から基準位置までの原稿の搬送時間が予め設定さ
れて検知させた原稿サイズに応してその原稿の搬送時間
を変更させる搬送時間制御手段を設けたことを特徴とす
る複写装置。
It is equipped with an automatic document feeder having a paper feed section for transporting the document onto the contact glass 1 and a transport member located on the contact glass, and a document stop base 7 ( A copying machine with a set position is provided with a sensor that detects the size of the original when detecting the leading edge of the original, and the time for transporting the original from the sensor position to the reference position is set in advance according to the original size. A copying apparatus comprising a conveyance time control means for changing the conveyance time of a document in accordance with the detected document size.
JP58074806A 1983-04-27 1983-04-27 Copying device Pending JPS59200272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58074806A JPS59200272A (en) 1983-04-27 1983-04-27 Copying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58074806A JPS59200272A (en) 1983-04-27 1983-04-27 Copying device

Publications (1)

Publication Number Publication Date
JPS59200272A true JPS59200272A (en) 1984-11-13

Family

ID=13557918

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58074806A Pending JPS59200272A (en) 1983-04-27 1983-04-27 Copying device

Country Status (1)

Country Link
JP (1) JPS59200272A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63147152A (en) * 1986-12-11 1988-06-20 Ricoh Co Ltd Copying machine with automatic document feeder
JPH0344657A (en) * 1989-07-12 1991-02-26 Mita Ind Co Ltd Automatic document feeder
CN105800347A (en) * 2016-04-20 2016-07-27 广州达意隆包装机械股份有限公司 Flaky material discharging device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63147152A (en) * 1986-12-11 1988-06-20 Ricoh Co Ltd Copying machine with automatic document feeder
JPH0344657A (en) * 1989-07-12 1991-02-26 Mita Ind Co Ltd Automatic document feeder
CN105800347A (en) * 2016-04-20 2016-07-27 广州达意隆包装机械股份有限公司 Flaky material discharging device

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