JPH06130160A - Paper edge detecting method for paper feed type scanner - Google Patents
Paper edge detecting method for paper feed type scannerInfo
- Publication number
- JPH06130160A JPH06130160A JP30493292A JP30493292A JPH06130160A JP H06130160 A JPH06130160 A JP H06130160A JP 30493292 A JP30493292 A JP 30493292A JP 30493292 A JP30493292 A JP 30493292A JP H06130160 A JPH06130160 A JP H06130160A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- color
- leading edge
- edge
- reader
- 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
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Spectrometry And Color Measurement (AREA)
- Geophysics And Detection Of Objects (AREA)
- Facsimiles In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ペーパフィード型のス
キャナ装置における用紙先端検出方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting the leading edge of a sheet in a paper feed type scanner device.
【０００２】[0002]
【従来の技術】最近名刺のデータをスキャナで読みとっ
て電子データとして保存するペーパフィード型スキャナ
装置が開発されている。2. Description of the Related Art Recently, a paper feed type scanner device has been developed in which data of a business card is read by a scanner and stored as electronic data.
【０００３】[0003]
【発明が解決しようとする課題】このようなペーパフィ
ード型のスキャナ装置においては、用紙挿入通路に配置
されるＣＣＤ(CHARGE COUPLED DEVICE)のようなデータ
読み取り装置１の直前にメカニカルスイッチや光学的に
用紙３の通過を検出するフォトインタラプタのようなエ
ッジ検出センサ２を配置して、用紙が読み取り開始位置
に来たことを処理装置４で検出している。したがって、
このような構成では、エッジ検出するための部品が必ず
必要となり、使用される部品のばらつきによってその精
度を高めることに限界があった。In such a paper feed type scanner device, a mechanical switch or an optical switch is provided immediately in front of the data reading device 1 such as a CCD (CHARGE COUPLED DEVICE) arranged in the paper insertion path. An edge detection sensor 2 such as a photo interrupter that detects passage of the paper 3 is arranged, and the processing device 4 detects that the paper has reached the reading start position. Therefore,
In such a structure, a component for edge detection is always required, and there is a limit to increase the accuracy due to the variation of the components used.
【０００４】[0004]
【課題を解決するための手段】このような問題を解決す
るために、データ読み取り装置の読み取り位置の背景に
光学的黒色のような背景色部材を配置し、読み取り装置
の検出色が背景色から白色のような他の色に変わること
によって用紙の先端を検出するようにしたものである。In order to solve such a problem, a background color member such as optical black is arranged in the background of the reading position of the data reading device, and the detection color of the reading device is changed from the background color. The leading edge of the paper is detected by changing to another color such as white.
【０００５】[0005]
【作用】このようにすれば、用紙の先端を検出するため
の特別の部品を不要とし、その先端検出も用紙のデータ
を読み取る装置自身を使っておこなうため、従来よりも
正確に検出できるようになる。また、本発明によれば、
スキュー角の検出も行うことができる。By doing so, a special component for detecting the leading edge of the paper is not required, and the leading edge is detected by the device itself that reads the data of the paper, so that it can be detected more accurately than before. Become. Further, according to the present invention,
The skew angle can also be detected.
【０００６】[0006]
【実施例】図１は、本発明によるペーパフィード型のス
キャナ装置における用紙先端検出方法の一実施例を示す
装置の検出機構の一例を示している。同図において、た
とえば、ＣＣＤによって構成される読み取り装置１１が
用紙通路１２に面して配置されており、この通路１２の
対向する面あるいは面に臨む部分には、光学的黒色のよ
うな背景部材１３が配置されている。この背景部材１３
は、用紙１４が挿入されないときの背景色となるもので
あり、用紙１４が挿入されてその先端が読み取り装置１
１の部分に達すると、読み取り装置１１は、それまでの
光学的黒から光学的黒以外の色である紙の先端の色、た
とえば、白を読みとる。処理装置１５は、この読み取り
装置１１から得られる背景色の光学的黒に対する用紙１
４の先端の色の違いから用紙１４の先端を正確に検出す
ることができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a detection mechanism of an apparatus showing an embodiment of a method for detecting the leading edge of a sheet in a paper feed type scanner apparatus according to the present invention. In the figure, a reading device 11 composed of, for example, a CCD is arranged facing the paper path 12, and a background member such as an optical black color is provided on a surface facing the paper path 12 or a portion facing the surface. 13 are arranged. This background member 13
Is the background color when the paper 14 is not inserted, and the front end of the paper 14 is inserted into the reading device 1.
When the portion 1 is reached, the reading device 11 reads the color of the leading edge of the paper, which is a color other than the optical black, up to that time, for example, white. The processing device 15 uses the paper 1 for the optical black of the background color obtained from the reading device 11.
The leading edge of the sheet 14 can be accurately detected from the difference in color of the leading edge of the sheet 4.
【０００７】このようにすれば、用紙１４が挿入され、
その先端が読み取り装置１１に達したことを正確に検出
することができ、しかも従来のような特別の検出装置を
必要としない。また、読み取り装置１１が用紙１４の先
端の状態を読みとるため、用紙１４のスキュー角も検出
することができるなどの効果も奏する。In this way, the paper 14 is inserted,
The fact that the tip has reached the reading device 11 can be accurately detected, and a special detecting device as in the prior art is not required. Further, since the reading device 11 reads the state of the leading edge of the sheet 14, the skew angle of the sheet 14 can also be detected.
【０００８】また、上述した実施例のように、読み取り
装置１１の背景色として光学的黒が用紙の色に変わった
ことを検出するだけでは、系のばらつきや、調整誤差な
どを含む。また、用紙が読み取り装置１１上にある場合
も用紙の先端があるとして誤った検出結果を送出する場
合もある。したがって、このような事項が問題になると
きには、以下の本発明の変形例の使用が考えられる。Further, as in the above-described embodiment, only detecting that the background color of the reading device 11 has changed from optical black to the color of the paper includes system variations and adjustment errors. In addition, even when the paper is on the reading device 11, an erroneous detection result may be sent because the leading edge of the paper exists. Therefore, when such a matter becomes a problem, use of the following modifications of the present invention is conceivable.
【０００９】すなわち、上述した実施例では、読み取り
装置の背景色を光学的黒として説明した。しかし、読み
取り装置の背景色が光学的に黒であるとしたとしても光
学的黒と読み取り装置１１の実際の背景色との間には、
ばらつきがある。したがって、本例では、挿入される用
紙の色と読み取り装置１１の背景色との間の検出レベル
差が所定値より大きいときに用紙先端が検出されたと判
断する。このようにすれば、前述したような系のばらつ
きや製造時の調整誤差を低減でき、しかも製造工数も低
減できるなどの効果を奏する。That is, in the above-described embodiments, the background color of the reading device is described as optical black. However, even if the background color of the reading device is optically black, between the optical black and the actual background color of the reading device 11,
There are variations. Therefore, in this example, it is determined that the leading edge of the sheet has been detected when the detection level difference between the color of the inserted sheet and the background color of the reading device 11 is larger than a predetermined value. By doing so, it is possible to reduce the above-mentioned system variation and the adjustment error at the time of manufacturing, and it is also possible to reduce the number of manufacturing steps.
【００１０】[0010]
【発明の効果】以上述べたように、本発明によるペーパ
フィード型のスキャナ装置における用紙先端検出方法に
よれば、用紙が挿入され、その先端が読み取り装置に達
したことを正確に検出することができ、しかも従来のよ
うな特別の検出装置を必要としない。また、読み取り装
置が用紙の先端の状態を読みとるため、用紙のスキュー
角も検出することができるなどの効果も奏する。さら
に、挿入される用紙の色と読み取り装置１１の背景色と
の間の検出レベル差が所定値より大きいときに用紙先端
が検出されたと判断すれば、系のばらつきや製造時の調
整誤差を低減でき、しかも製造工数も低減できるなどの
効果を奏する。As described above, according to the method for detecting the leading edge of the paper in the paper feed type scanner device according to the present invention, it is possible to accurately detect that the leading edge of the paper is inserted and reaches the reading device. It is possible and does not require a special detection device as in the past. In addition, since the reading device reads the state of the leading edge of the sheet, the skew angle of the sheet can be detected. Further, if it is determined that the leading edge of the sheet is detected when the detection level difference between the color of the sheet to be inserted and the background color of the reading device 11 is larger than a predetermined value, system variations and adjustment errors during manufacturing are reduced. It is possible to achieve such an effect that the number of manufacturing steps can be reduced.
【図１】本発明によるペーパフィード型のスキャナ装置
における用紙先端検出方法の一実施例を説明する装置の
基本構成を示す図である。FIG. 1 is a diagram showing a basic configuration of an apparatus for explaining an embodiment of a method for detecting the leading edge of a sheet in a paper feed type scanner apparatus according to the present invention.
【図２】従来の用紙先端検出方法の一例を説明する装置
の基本構成を示す図である。FIG. 2 is a diagram showing a basic configuration of an apparatus for explaining an example of a conventional sheet leading edge detecting method.
１ データ読み取り装置 ２ 検出センサ ３ 用紙 ４ 処理装置 １１ 読み取り装置 １２ 用紙通路 １３ 背景部材 １４ 紙 １５ 処理装置 DESCRIPTION OF SYMBOLS 1 Data reading device 2 Detection sensor 3 Paper 4 Processing device 11 Reading device 12 Paper path 13 Background member 14 Paper 15 Processing device
Claims (2)
向する側に用紙と異なる色の背景色部材を配置し、用紙
の先端が読み取り装置に達したときの色の変化を検出す
ることにより、用紙の先端を検出するようにしたことを
特徴とするペーパフィード型のスキャナ装置における用
紙先端検出方法。1. A background color member of a color different from that of the paper is arranged on a side of the paper path facing the reading device, and the change in color when the leading edge of the paper reaches the reading device is detected, A method for detecting the leading edge of a sheet in a paper feed type scanner device, characterized in that the leading edge of the sheet is detected.
用紙の色のレベル差が所定値より大きいときに用紙先端
の検出と判断するようにしたことを特徴とする請求項１
の用紙先端検出方法。2. The method according to claim 1, wherein when the difference in level between the background color detected by the reading device and the color of the paper is larger than a predetermined value, it is determined that the leading edge of the paper has been detected.
Paper edge detection method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30493292A JPH06130160A (en) | 1992-10-16 | 1992-10-16 | Paper edge detecting method for paper feed type scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30493292A JPH06130160A (en) | 1992-10-16 | 1992-10-16 | Paper edge detecting method for paper feed type scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06130160A true JPH06130160A (en) | 1994-05-13 |
Family
ID=17939054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30493292A Pending JPH06130160A (en) | 1992-10-16 | 1992-10-16 | Paper edge detecting method for paper feed type scanner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06130160A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010019130A1 (en) | 2008-08-11 | 2010-02-18 | Hewlett-Packard Development Company, L.P. | Systems and methods for detecting media edges in an automatic document feeder |
-
1992
- 1992-10-16 JP JP30493292A patent/JPH06130160A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010019130A1 (en) | 2008-08-11 | 2010-02-18 | Hewlett-Packard Development Company, L.P. | Systems and methods for detecting media edges in an automatic document feeder |
| EP2314064A1 (en) * | 2008-08-11 | 2011-04-27 | Hewlett-Packard Development Company, L.P. | Systems and methods for detecting media edges in an automatic document feeder |
| EP2314064A4 (en) * | 2008-08-11 | 2011-08-03 | Hewlett Packard Development Co | Systems and methods for detecting media edges in an automatic document feeder |
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