JPH09190021A - Copier - Google Patents
CopierInfo
- Publication number
- JPH09190021A JPH09190021A JP8001470A JP147096A JPH09190021A JP H09190021 A JPH09190021 A JP H09190021A JP 8001470 A JP8001470 A JP 8001470A JP 147096 A JP147096 A JP 147096A JP H09190021 A JPH09190021 A JP H09190021A
- Authority
- JP
- Japan
- Prior art keywords
- double
- sided
- document
- original
- reading
- 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.)
- Granted
Links
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Facsimiles In General (AREA)
Abstract
(57)【要約】
【目的】 両面原稿と片面原稿が混ざっていても自動的
に間違いなく能率よくコピーできる複写機。
【構成】 複写機に備えたオートフィーダー１には、原
稿読み取り台に送る原稿が両面原稿であるか片面原稿で
あるか判別する両面原稿検知器４を有し、両面原稿のと
きは記録用紙に両面コピーを実施する。
(57) [Summary] [Purpose] A copier that can automatically and efficiently copy even if two-sided and one-sided originals are mixed. [Structure] An auto feeder 1 provided in a copying machine has a double-sided document detector 4 for determining whether a document to be sent to a document reading stand is a double-sided document or a single-sided document. Make a copy.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、原稿を読み取り台
に自動的に配置して画像をスキャナーで読み取りハード
コピー出力する複写機の技術分野に屈するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to the technical field of a copying machine in which an original is automatically placed on a reading table, an image is read by a scanner and a hard copy is output.
【０００２】[0002]
【従来の技術】複写機には様々な形態のものがあり、そ
の中には図４に示すように複写機本体２１にオートフィ
ーダーと呼ばれるユニット１を有するものがある。2. Description of the Related Art There are various types of copying machines, and among them, there is a copying machine having a unit 1 called an auto feeder as shown in FIG.
【０００３】このオートフィーダー１は、セットされた
原稿を読み取り台に自動的に配置するもので、枚数の多
い原稿をコピーするときに大変便利なものである。ま
た、両面コピー機能を有する複写機では、原稿の裏面を
自動的に読み取れるよう、オートフィーダーが原稿を反
転して読み取り台に再配置するようになっている。The auto feeder 1 automatically places the set originals on the reading table, and is very convenient when copying a large number of originals. Further, in a copying machine having a double-sided copy function, the auto feeder reverses the document and rearranges it on the reading table so that the back side of the document can be automatically read.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来例では、原稿の中に片面原稿と両面原稿が混在してい
る場合、両面コピーモードを指定すると、両面コピーの
必要のない片面原稿まで両面コピーするので、コピーに
要する時間が長引くという問題があった。また、両面コ
ピーモードを指定することをうっかり忘れてしまい、必
要な情報をコピーし損なうという問題があった。However, in the above-mentioned conventional example, when a single-sided original and a double-sided original are mixed in the original, if the double-sided copy mode is designated, even a single-sided original that does not require double-sided copying is copied. Therefore, there is a problem that the time required for copying is prolonged. Further, there is a problem in that the user forgets to specify the double-sided copy mode and fails to copy necessary information.
【０００５】本発明は、前記従来の問題点を解消するた
めに成されたもので、両面原稿と片面原稿が混ざってい
ても自動的に間違いなく能率よくコピーできる複写機の
提供を目的とするものである。The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a copying machine capable of automatically and efficiently making a copy even when a double-sided original and a single-sided original are mixed. It is a thing.
【０００６】[0006]
【課題を解決するための手段】本発明の複写機は、下記
の（１）〜（４）の構成によって、前期の目的を達成す
る。The copying machine of the present invention achieves the object of the previous term by the following constitutions (1) to (4).
【０００７】（１）読み取り台に原稿を自動的に配置す
るオートフィーダー手段と、原稿をスキャナーで読み取
る読取り手段と、読み取った画像信号を出力画像信号に
変換する画像信号変換手段と、変換された出力画像信号
に基づき記録媒体に画像形成するハードコピー出力手段
と、原稿が両面原稿であることを判別する両面原稿検知
手段とを有する複写機。(1) Auto-feeder means for automatically placing a document on a reading table, reading means for reading a document with a scanner, image signal converting means for converting a read image signal into an output image signal, and converted output A copying machine having a hard copy output means for forming an image on a recording medium based on an image signal, and a double-sided original detection means for determining that an original is a double-sided original.
【０００８】（２）前記オートフィーダー手段にセット
された原稿一枚一枚について両面原稿であるかどうかを
前記両面原稿検知手段により検査し、原稿が両面原稿で
有ることを判別したときは、自動的に両面コピーを行う
ことを特徴とする、前記（１）に記載の複写機。(2) If each original set on the auto feeder means is a double-sided original, it is inspected by the double-sided original detecting means, and when it is determined that the original is a double-sided original, it is automatically determined. The copying machine according to (1) above, wherein double-sided copying is performed.
【０００９】（３）前記オートフィーダー手段内に前記
両面原稿検知手段の部分として、原稿の裏面に照明を当
てて反射光をセンサーで読み取る裏面読み取り手段を設
けたことを特徴とする、前記（１）に記載の複写機。(3) In the auto feeder means, as a part of the double-sided document detecting means, a back side reading means for illuminating the back side of the original and reading the reflected light with a sensor is provided. Copier described in.
【００１０】（４）前記両面原稿検知手段は、原稿の裏
面に照明を当て、反射光量が所定のレベルを下回る画素
を計数し、この画素数が所定の数値以上である場合に両
面原稿であると判定することを特徴とする、前記（１）
に記載の複写機。(4) The double-sided original detecting means illuminates the back surface of the original and counts the pixels whose reflected light amount is below a predetermined level. When the number of pixels is equal to or larger than a predetermined value, the double-sided original is a double-sided original. (1), characterized in that
Copier described in.
【００１１】[0011]
【発明の実施の形態】前記課題を解決するため、本発明
の複写機は、原稿を読み取り台に自動的に配置する手段
と、原稿をスキャナーで読み取る手段と、読み取った画
像信号を出力信号に変換する手段と、変換された出力画
像信号をハードコピー出力する手段と、原稿が両面原稿
であることを判別する手段とを有することを特徴とす
る。In order to solve the above-mentioned problems, the copying machine of the present invention has a means for automatically placing a document on a reading table, a means for reading the document with a scanner, and a read image signal as an output signal. It is characterized in that it has a means for converting, a means for outputting a hard copy of the converted output image signal, and a means for determining that the original is a double-sided original.
【００１２】そして、原稿の中に片面原稿と両面原稿が
混在している場合には、両面原稿だけを自動的に両面コ
ピーするようにしたものである。When a single-sided original and a double-sided original are mixed in the original, only the double-sided original is automatically copied on both sides.
【００１３】詳細は、実施例によって説明する。Details will be described with reference to embodiments.
【００１４】[0014]
【実施例】本発明の実施例は、前記説明のオートフィー
ダーを有している複写機であって、両面原稿と片面原稿
が混ざっていても自動的に間違いなく能率よくコピーで
きる構成を有している。この特徴ある構成部分を図面参
照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is a copying machine having the above-described auto feeder, and has a structure capable of automatically and efficiently copying even if a double-sided original and a single-sided original are mixed. There is. The characteristic components will be described with reference to the drawings.
【００１５】図１は、本発明実施例の特徴を最もよく表
すオートフィーダーの断面図である。同図において、１
はオートフィーダー、２は原稿台、３は給紙ローラー、
４は本発明に係る両面原稿検知器、５は搬送ベルト、６
は反転・排紙ローラー、７は反転切り替え爪、８は複写
機本体の原稿読み取り台である。FIG. 1 is a sectional view of an auto feeder, which best shows the features of the embodiment of the present invention. In the figure, 1
Is an auto feeder, 2 is a document table, 3 is a paper feed roller,
4 is a double-sided document detector according to the present invention, 5 is a conveyor belt, 6
Is a reversing / paper discharging roller, 7 is a reversing switching claw, and 8 is a document reading table of the copying machine body.
【００１６】本実施例が備える上記構成のオートフィー
ダー１の働きを説明する。The operation of the auto feeder 1 having the above-mentioned configuration provided in this embodiment will be described.
【００１７】原稿台２に表を上にして置かれた原稿は給
紙ローラー３によって一枚づつ分離給紙されるが、この
とき、両面原稿検知器４によって原稿の裏面を読み取
り、その反射光量が部分的に所定の値を下回っている場
合、給紙された原稿を両面原稿と判定する。その後、原
稿は搬送ベルト５によって所定の読み取り位置にセット
され、図示してないスキャナによって露光走査される。Documents placed on the document table 2 face up are separated and fed one by one by the paper feed roller 3. At this time, the back side of the document is read by the double-sided document detector 4 and the amount of reflected light is read. Is partially below a predetermined value, the fed document is determined to be a double-sided document. After that, the original is set at a predetermined reading position by the conveyor belt 5 and exposed and scanned by a scanner (not shown).
【００１８】露光走査が完了すると、両面原稿検知器４
によって片面原稿と判定された場合は、給紙時とは逆方
向に動く搬送ベルト５および反転・排紙ローラー６によ
って原稿台２へと排紙され、次の原稿の給紙動作が開始
される。両面原稿と判定された場合は、自動的に反転切
り替え爪７が立ち上がり、原稿は再び搬送ベルト５の方
へ導かれ、反転して所定の読み取り位置にセットされ、
裏面の露光走査が行われる。露光走査が完了すると、片
面原稿の場合と同様にして排紙され、次の原稿の給紙動
作が開始される。When the exposure scanning is completed, the double-sided document detector 4
When it is determined that the original is a one-sided original, the conveyance belt 5 and the reversing / discharging roller 6 that move in the opposite direction to the one when the sheet is fed are discharged onto the document table 2, and the feeding operation of the next original is started. . When it is determined that the original is a double-sided original, the reversal switching claw 7 is automatically raised, the original is guided again toward the conveyance belt 5, is reversed, and is set at a predetermined reading position.
Exposure scanning of the back surface is performed. When the exposure scanning is completed, the sheet is discharged in the same manner as in the case of a single-sided original, and the feeding operation of the next original is started.
【００１９】次に、両面原稿の判別方法について図２お
よび図３を用いて詳しく説明する。Next, a method of discriminating a double-sided original will be described in detail with reference to FIGS. 2 and 3.
【００２０】図２は両面原稿検知器４の外観図であり、
同図において、１１はＬＥＤアレイ、１２はＣＣＤライ
ンセンサー、１３は原稿の先端検知用遮断型光スイッ
チ、１４は原稿の終端検知用遮断型光スイッチである。
また、図３は両面原稿判別方法のフローチャートであ
る。FIG. 2 is an external view of the double-sided document detector 4.
In the figure, 11 is an LED array, 12 is a CCD line sensor, 13 is a cut-off optical switch for detecting the leading edge of a document, and 14 is a cut-off optical switch for detecting the end of a document.
FIG. 3 is a flowchart of the double-sided original discriminating method.
【００２１】図３のステップＳ１００において、両面原
稿検知器４に入ってきた原稿の先端を検知すると、光ス
イッチ１３が遮断状態になる。そして最初に一度だけカ
ウンタをリセットする（Ｓ１０１）。In step S100 of FIG. 3, when the leading edge of the document entering the double-sided document detector 4 is detected, the optical switch 13 is turned off. Then, the counter is first reset only once (S101).
【００２２】そして、図２に示すＬＥＤアレイ１１によ
って照らされた原稿の裏面の反射光をＣＣＤラインセン
サー１２で読み取る（Ｓ１０２）。読み取られた１ライ
ン分の反射光量分布は画素ごとに二値化され（Ｓ１０
３）、低反射率画素の個数がカウントされる（Ｓ１０
４）。この読み取り動作を原稿の終端を検知するまで繰
り返す。やがて原稿が両面原稿検知器４を通過すると、
光スイッチ１４が導通状態になる。これによって原稿の
終端を検知すると（Ｓ１０５）、これまで繰り返してい
た読み取り動作を中止し、低反射率画素の総和を算出す
る。そして、この総和が所定の値を超えた場合に両面原
稿と判定する（Ｓ１０６）。Then, the reflected light on the back surface of the document illuminated by the LED array 11 shown in FIG. 2 is read by the CCD line sensor 12 (S102). The reflected light amount distribution for one line read is binarized for each pixel (S10
3) The number of low reflectance pixels is counted (S10).
4). This reading operation is repeated until the end of the document is detected. When the original passes the double-sided original detector 4,
The optical switch 14 becomes conductive. When the end of the document is detected in this way (S105), the reading operation which has been repeated up to this point is stopped and the total sum of the low reflectance pixels is calculated. Then, when this total exceeds a predetermined value, it is determined that the original is a double-sided original (S106).
【００２３】なお、誤判定を防ぐため、ＣＣＤラインセ
ンサー１２は原稿の横幅よりやや短く、原稿の左右両端
のやや内側を走査するように配置されている。同様に、
光スイッチ１３はＣＣＤラインセンサー１２よりやや読
み取り台寄りに、光スイッチ１４は原稿台寄りに設置さ
れており、原稿の先端のやや内側から裏面の反射光読み
取りの走査を開始して、原稿の終端の少し手前で走査を
終了するようになっている。In order to prevent erroneous determination, the CCD line sensor 12 is arranged to be slightly shorter than the width of the original and scan slightly inside the left and right ends of the original. Similarly,
The optical switch 13 is installed slightly closer to the reading table than the CCD line sensor 12, and the optical switch 14 is installed closer to the document table. The scanning of reflected light reading on the back surface is started from slightly inside the leading edge of the document, and the end of the document is started. The scanning is finished just before this.
【００２４】なお、本発明はこの実施例に限定されてる
ものではない。例えば、ＬＥＤアレイは蛍光灯やハロゲ
ンランプに置き換えてもよいし、ＣＣＤラインセンサー
の長さを原稿の幅より長くして、原稿の位置と幅をＣＣ
Ｄラインセンサーによって検知した反射光量分布から求
めて原稿の内側を走査するようにしてもよい。また、ミ
スコピーをした紙の裏面を再利用する場合を考慮して、
片面コピーを標準モードとし、本発明の自動両面コピー
機能はオプションとして選択できるようにしてもよい
し、両面原稿であることを検知した場合に、両面原稿で
あることをユーザーに告知して、両面コピーをするかど
うかをユーザーが決定するように構成してもよい。The present invention is not limited to this embodiment. For example, the LED array may be replaced with a fluorescent lamp or a halogen lamp, the length of the CCD line sensor may be made longer than the width of the document, and the position and width of the document may be CC.
The inside of the original may be scanned by obtaining it from the distribution of the amount of reflected light detected by the D line sensor. Also, considering the case of reusing the back side of the paper that was mis-copied,
The single-sided copy may be set to the standard mode, and the automatic double-sided copy function of the present invention may be selected as an option. If it is detected that the original is a double-sided original, the user is notified that the original is a double-sided original, and the duplex The user may decide whether or not to make a copy.
【００２５】[0025]
【発明の効果】以上説明したように、本発明によれば、
原稿の中に片面原稿と両面原稿が混在している場合、両
面原稿だけが自動的に両面コピーされるので、コピーに
要する時間を短縮でき、しかも、必要な情報をうっかり
コピーし忘れることを防止できるという効果がある複写
機を提供できる。As described above, according to the present invention,
If you have a mix of single-sided and double-sided originals, only double-sided originals will be automatically copied on both sides, reducing the time required for copying and preventing you from accidentally forgetting to copy the necessary information. It is possible to provide a copier having the effect of being able to do so.
【図１】 本発明を実施したオートフィーダーの断面
図。FIG. 1 is a sectional view of an auto feeder embodying the present invention.
【図２】 本発明を実施した両面原稿検知器。FIG. 2 is a double-sided document detector embodying the present invention.
【図３】 両面原稿の判別方法を示すフローチャート。FIG. 3 is a flowchart showing a method for determining a double-sided original.
【図４】 オートフィーダーを有する複写機の外観。FIG. 4 is an external view of a copying machine having an auto feeder.
１ オートフィーダー ４ 両面原稿検知器 ６ 反転・排紙ローラー ７ 反転切り替え爪 ８ 複写機本体の原稿読み取り台 １１ ＬＥＤアレイ １２ ＣＣＤラインセンサー １３，１４ 遮断型光スイッチ ２１ 複写機本体 1 Auto Feeder 4 Double-sided Document Detector 6 Reversing / Discharging Roller 7 Reversing Switching Claw 8 Document Copying Stand of Copy Machine Main Body 11 LED Array 12 CCD Line Sensor 13, 14 Blocking Optical Switch 21 Copying Machine Main Body
Claims (4)
ートフィーダー手段と、原稿をスキャナーで読み取る読
取り手段と、読み取った画像信号を出力画像信号に変換
する画像信号変換手段と、変換された出力画像信号に基
づき記録媒体に画像形成するハードコピー出力手段と、
原稿が両面原稿であることを判別する両面原稿検知手段
とを有する複写機。1. An automatic feeder means for automatically placing a document on a reading table, a reading means for reading the document with a scanner, an image signal converting means for converting a read image signal into an output image signal, and a converted output image. Hard copy output means for forming an image on a recording medium based on a signal,
A copier having a double-sided document detecting means for determining that the document is a double-sided document.
た原稿一枚一枚について両面原稿であるかどうかを前記
両面原稿検知手段により検査し、原稿が両面原稿で有る
ことを判別したときは、自動的に両面コピーを行うこと
を特徴とする請求項１に記載の複写機。2. When the original set on the auto feeder means is a double-sided original, whether or not the original is a double-sided original, and when it is determined that the original is a double-sided original, it is automatically determined. The copying machine according to claim 1, wherein double-sided copying is performed.
原稿検知手段の部分として、原稿の裏面に照明を当てて
反射光をセンサーで読み取る裏面読み取り手段を設けた
ことを特徴とする、請求項１に記載の複写機。3. The back side reading means for illuminating the back side of the original and reading the reflected light with a sensor is provided in the auto feeder means as a part of the double sided original detecting means. Copy machine.
照明を当て、反射光量が所定のレベルを下回る画素を計
数し、この画素数が所定の数値以上である場合に両面原
稿であると判定することを特徴とする、請求項１に記載
の複写機。4. The double-sided document detecting means illuminates the back surface of the document and counts the pixels whose reflected light amount is below a predetermined level. When the number of pixels is equal to or larger than a predetermined value, it is determined that the document is a double-sided document. The copying machine according to claim 1, wherein a judgment is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00147096A JP3884788B2 (en) | 1996-01-09 | 1996-01-09 | Copier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00147096A JP3884788B2 (en) | 1996-01-09 | 1996-01-09 | Copier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09190021A true JPH09190021A (en) | 1997-07-22 |
| JP3884788B2 JP3884788B2 (en) | 2007-02-21 |
Family
ID=11502358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00147096A Expired - Fee Related JP3884788B2 (en) | 1996-01-09 | 1996-01-09 | Copier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3884788B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893833A (en) * | 2009-05-20 | 2010-11-24 | 佳能株式会社 | Image forming apparatus and control method therefof |
| JP2013229857A (en) * | 2012-03-29 | 2013-11-07 | Canon Inc | Reading apparatus and method for controlling the same |
| JP2021182108A (en) * | 2020-05-20 | 2021-11-25 | コニカミノルタ株式会社 | Image reader and image forming device |
-
1996
- 1996-01-09 JP JP00147096A patent/JP3884788B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893833A (en) * | 2009-05-20 | 2010-11-24 | 佳能株式会社 | Image forming apparatus and control method therefof |
| US8229315B2 (en) | 2009-05-20 | 2012-07-24 | Canon Kabushiki Kaisha | Image forming apparatus and control method therefor |
| CN101893833B (en) | 2009-05-20 | 2012-09-12 | 佳能株式会社 | Image forming apparatus and control method therefof |
| JP2013229857A (en) * | 2012-03-29 | 2013-11-07 | Canon Inc | Reading apparatus and method for controlling the same |
| JP2021182108A (en) * | 2020-05-20 | 2021-11-25 | コニカミノルタ株式会社 | Image reader and image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3884788B2 (en) | 2007-02-21 |
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