JPH06102797A - Copy impossible system for copying machine - Google Patents

Copy impossible system for copying machine

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Publication number
JPH06102797A
JPH06102797A JP4278059A JP27805992A JPH06102797A JP H06102797 A JPH06102797 A JP H06102797A JP 4278059 A JP4278059 A JP 4278059A JP 27805992 A JP27805992 A JP 27805992A JP H06102797 A JPH06102797 A JP H06102797A
Authority
JP
Japan
Prior art keywords
copying
watermark
copying machine
sheet
etc
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
JP4278059A
Other languages
Japanese (ja)
Inventor
Hideki Sawanobori
秀樹 澤登
Original Assignee
Hideki Sawanobori
秀樹 澤登
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 Hideki Sawanobori, 秀樹 澤登 filed Critical Hideki Sawanobori
Priority to JP4278059A priority Critical patent/JPH06102797A/en
Publication of JPH06102797A publication Critical patent/JPH06102797A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE:To accomplish a copy impossible system by a copying machine for preventing securities such as a stock and a bond, etc., important documents such as a contract and a letter of attorney, etc., and confidential documents from being forged by use of a copying machine. CONSTITUTION:The pattern constituted of the design of a prescribed motif, or characters, etc., is printed on the suitable position of a sheet as a copying original 31 by treatment liquid, a watermark having enhanced light transmittivity is formed, and at the time of copying, the difference of the transmitted light quantity between the watermark part and the part other than the watermark part is read by an optical sensor 22 incorporated with the copying machine, and when the prescribed difference is detected, the function of the copying machine is stopped. Thus, the sheet as the copying original 31 is surely detected by the optical sensor 22, and also an inconspicuous watermark is formed, and the copying machine is set so that a copying operation may be stopped when the watermark is detected by the copying machine, then, copied sheets other than the necessary sheets cannot be obtained by forming the watermarks on necessary sheets such as the confidential documents and the important documents.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】この発明は株券・債券等の有価証券、契約書・委任状等の重要書類や機密文書等の複写機による偽造を防止するための複写機による複写不能システムに関するものである。 BACKGROUND OF THE INVENTION This invention relates to a copying non-system by the copying machine in order to prevent securities such as shares and bonds, forgery by agreement, power of attorney, etc. of important documents and confidential documents such as a copying machine is there.

【0002】 [0002]

【従来の技術】近年複写機の普及により機密文書や重要書類が容易に複写できるようになり、かつ複写機の性能向上には目覚ましいものがあり、本文書か複写文書かの見分けもつかず、さまざまなトラブルが生じ、ひとつの社会現象ともなっている。 Now confidential documents and important documents the spread of the Related Art In recent years copying machine can be easily copied and there is remarkable in the performance improvement of the copying machine, identify whether the document or paper copy also Tsukazu, various trouble occurs, it has also become one of the social phenomenon.

【0003】上記の問題を解決するため、複写機による偽造防止方法としていろいろな手段が取られている。 [0003] To solve the above problem, various means have been taken as a forgery preventing method according to the copying machine.

【0004】例えば特開昭54−74125号公報に見られるような、基材表面に微細構成子からなる潜像を印刷し、複写時に潜像が現出するような方法、あるいは特開昭54−36731号公報に見られるような複写材に設けたマークを検出したときにのみ複写動作を行なわせる、複写機による紙幣偽造等の悪用複写防止装置が知られている。 [0004] as seen in JP-Sho 54-74125, to print the latent image on the surface of the substrate a fine constructors, methods, such as latent image to emerge during copying or JP 54, a mark provided on the copy material as seen in -36731 discloses only when it detects to perform the copying operation, misuse copy prevention apparatus of the bill counterfeiting and the like are known by the copier.

【0005】 [0005]

【発明が解決しようとする問題点】しかしながら、上記手段の前者のものにおいては、基材表面に有色の印刷を施すものであり、用紙として使用する場合、通常文書としては読みにくくなり、文書の理解を損なうという欠点がある。 THE INVENTION A problem to be solved] However, in those of the former of the above means is intended to perform the printing of colored on the surface of the substrate, when used as paper, difficult to read normally as a document, the document there is a disadvantage that impair the understanding.

【0006】他方、後者の複写材にマークを付与した場合のみ複写機が作動するようにした装置においては、複写されたものは検出マークがついているため、明らかに偽造であることは分かるが、通常の複写作業において給紙時にいちいち複写用紙を選別して給紙しなければならず、その手間は非常に面倒である。 [0006] On the other hand, in the apparatus only copier is adapted to operate If granted the mark latter copy material, since those replication is with the detection mark, but it is understood that it is obviously counterfeit, must be paper feeding by selecting one by one copy sheets at the sheet feeding in the normal copying operations, the time is very troublesome.

【0007】そこでこの発明は、複写原稿の用紙に透かし模様を形成させ、かつこの透かし模様を特殊なものとして上述のような従来例の欠点を解消した複写機による複写不能システムを提供しようとするものである。 [0007] Therefore the present invention is to form a watermark on a sheet of original document, and to the watermark and to provide a copying impossible system by the copying machine eliminates the conventional drawbacks of the above-mentioned as a special case it is intended.

【0008】 [0008]

【問題点を解決するための手段】すなわちこの発明の複写機による複写不能システムは、複写原稿の用紙の適所に所定のモチーフの図案あるいは文字等からなる模様を処理液でプリントし、光透過性を向上させた透かし部を形成させ、複写時、複写機に組み込んだ光センサにより透かし部と透かし部外との光透過量の差異を読み取り、 Copying impossible system according copier Means for Solving the Problems] That is the present invention is to print a position to consist of designs or characters or the like of a predetermined motif pattern paper original document with a processing solution, optical transparency to form a watermark portion with improved read the difference in amount of light transmission of the watermark portion watermark outer during copying, the optical sensor incorporated in a copying machine,
所定の差異を感知したときには複写機の機能を停止させることを特長とするものである。 When the sensed predetermined difference is intended that features stopping the copying machine function.

【0009】 [0009]

【作用】この発明の複写機による複写不能システムは以上のように構成したので、複写原稿の用紙が光センサによって確実に検出でき、かつあまり目立たない透かし模様を備え、また複写機によって上記透かし模様を検知したときは複写動作を停止するようにしたので、機密文書や重要文書等の必要部数に透かし模様を入れておくことにより必要外の複写を得られなくすることができる。 [Action] Since the replication impossible system according copiers invention is configured as described above, the paper of the original document can be reliably detected by the optical sensor, and includes a watermark less obvious, also the watermark by a copier since it was so when it detects the copying operation is stopped, can be impossible to obtain a copy outside necessary by previously watermarked pattern required number of copies of such confidential documents and important documents.

【0010】 [0010]

【実施例】以下、この発明の複写機による複写不能システムの一実施例を図面に基いて説明する。 BRIEF DESCRIPTION based one embodiment of a copying impossible system according copier of the invention with reference to the accompanying drawings.

【0011】図1および図2において、1は複写原稿として使用される用紙で、特に複写することによって文書偽造による悪用が行なわれてしまうような、株券、債券等の有価証券、契約書、委任状等に使用される用紙が該当する。 [0011] In Figures 1 and 2, 1 is a sheet to be used as original document, such as would be performed abuse by forgery particularly by copying, stock certificates, securities such as bonds securities, contracts, delegation paper used in Jo or the like. この用紙1の適所には透かし模様として、文字・図形・模様等からなる透かし部(図では図形)2が形成されている。 The as watermark is in position of the sheet 1, the watermark portion consisting of text, graphics, patterns, etc. (figures in the drawing) 2 is formed.

【0012】上記用紙1に透かし模様を形成する方法としては、特公昭25−354号公報に記載された手段が好適に使用できる。 [0012] As a method for forming a watermark on the paper 1, it means described in JP-B-25-354 can be suitably used. すなわち、用紙1の適所に所定のモチーフの図案あるいは文字等からなる模様を処理液でプリントし、この処理液が用紙1の光透過性を向上させ、 That is, printing a pattern consisting of designs or characters or the like of a predetermined motif in position of the sheet 1 with a processing solution, the processing solution is to improve the light transmittance of the sheet 1,
上記模様の透かし部2を形成するものである。 And it forms a watermark portion 2 of the pattern.

【0013】上記透かし部2は、未処理部分に比較して400〜800mμ波長域において1.2〜1.5倍の光透過量となり、光センサ(例えば、松下制御株式会社製レーザ式ラインセンサ LA−500)で充分感知可能な差異が得られる。 [0013] The watermark section 2 becomes a 1.2 to 1.5 times the amount of light transmission in 400~800mμ wavelength region as compared to the untreated portion, an optical sensor (e.g., a laser Beam Sensor made by Matsushita control Ltd. sufficient sensible differences LA-500) is obtained. 下記に通常の用紙と透かし入りの用紙との光の透過率の比較を示す。 Below shows the comparison of the transmittance of light of the ordinary paper and watermarked paper.

【0014】 [0014]

【表1】 [Table 1] 上記において白紙部および透かし部の数値は光の透過量を示し、比率は透かし部/白紙部を意味するものである。 Numerical blank portion and the watermark portion in the above indicates the amount of transmitted light, the ratio is intended to mean a watermark portion / blank portions.

【0015】上記用紙1は、上述のような機密文書あるいは重要文書用として使用することができる。 [0015] The sheet 1 can be used for confidential documents or important documents, such as described above. その際、 that time,
透かし部2があるため、文書の重要性が充分に認識可能である。 Since there is a watermark portion 2, the importance of the document is sufficiently recognizable.

【0016】上記用紙1が適用される複写機は、図3のような機構を有している。 The copying machine in which the sheet 1 is applied, has a mechanism such as Figure 3. すなわち、回転ドラム式の感光体11と、第1の帯電器12と、複写原稿31に光を照射し、レンズ14を介して感光体11を露光させる光源13と、露光された感光体11を現像させる現像器1 That is, the photosensitive member 11 of the rotary drum, a first charger 12, a light is irradiated to the original document 31, a light source 13 for exposing the photoreceptor 11 through the lens 14, the exposed photosensitive member 11 developing device 1 for developing
5と、複写用紙32に転写する第2の帯電器16と、ヒータを備えた定着器17と、除電器18およびクリーニング装置19で構成されている。 5, the second charger 16 for transferring the copy sheet 32, and the fixing device 17 equipped with a heater, and a discharger 18 and a cleaning device 19.

【0017】この発明に使用される複写機は、透明な原稿の載置台に面した所定の位置に取り付けた光源21 The light source 21 copier used in this invention, attached to a predetermined position facing the mounting table transparent document
と、原稿からの反射光を受ける受光素子22とを有する、透かし部2の検出機構を備えている。 When, and a light receiving element 22 for receiving reflected light from the original, a detecting mechanism of the watermark portion 2.

【0018】上記検出機構の電子回路の例を図4に示す。 [0018] FIG. 4 is an example of an electronic circuit of the detection mechanism. すなわち、光源21と、光源21からの光を受ける受光素子22、比較器23、および基準値を記憶されたCPU25トランジスタ24、回路定数設定用抵抗Ra That is, the light source 21, a light receiving element 22 receives light from the light source 21, comparator 23, and the reference value CPU25 transistor 24 is stored, for setting circuit constants resistance Ra
〜Rg等からなっている。 It is made from ~Rg like. したがって原稿の載置台上で、光源21と受光素子22との間を通過した複写原稿31が透かし部2を有するものであり、その透かし部2 Thus on the mounting table of the document, original document 31 which has passed between the light source 21 and the light receiving element 22 is one having a watermark portion 2, the watermark portion 2
の通過の際の光の透過量が上記基準値以上の数値を示した場合、上記検出機構が作動して当該複写原稿の複写作業を緊急に停止するようになっている。 If the amount of light transmission at the time of passage of the showed figures above the reference value, the detection mechanism is adapted to emergency stop the copying operations of the copying original operating.

【0019】なお、上記実施例においては、光センサとして反射光を感知するタイプのものを示したが、透過光を感知するタイプのものであってもよく、また感知しようとする紙質に応じて種々の光電変換材料を使用することができる。 [0019] In the above embodiment, although the of the type which senses reflected light as a light sensor, may be of the type that senses the transmitted light, also depending on the paper quality to be sensed it is possible to use various photoelectric conversion material.

【0020】 [0020]

【発明の効果】この発明の複写機による複写不能システムは以上のように構成したので、複写原稿の用紙が光センサによって確実に検出でき、かつあまり目立たない透かし模様を備え、また複写機によって上記透かし模様を検知したときは複写動作を停止するようにしたので、機密文書や重要文書等の必要部数に透かし模様を入れておくことにより必要外の複写を得られなくすることができる。 [Effect of the Invention] Since the replication impossible system according copiers invention is configured as described above, the paper of the original document can be reliably detected by the optical sensor, and includes a watermark less obvious, also the by copier since when detecting watermark was to stop the copying operation, it can be impossible to obtain a copy outside necessary by previously watermarked pattern required number of copies of such confidential documents and important documents.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】この発明の複写機による複写不能システムに使用される用紙を示す斜視図である。 1 is a perspective view showing the paper used in the copying impossible system according copier of the present invention.

【図2】その断面図である。 2 is a cross-sectional view thereof.

【図3】複写機の概略図である。 Figure 3 is a schematic view of a copying machine.

【図4】検出機構の電子回路の例を示すブロック図である。 4 is a block diagram showing an example of an electronic circuit of the detection mechanism.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 用紙 2 透かし部分 11 感光体 12 第1の帯電器 13 光源 14 レンズ 15 現像器 16 第2の帯電器 17 定着器 18 除電器 19 クリーニング装置 21 光源 22 受光素子 23 比較器 24 トランジスタ 25 CPU Ra〜Rg 回路定数設定用抵抗 1 Paper 2 watermark portion 11 photoreceptor 12 first charger 13 light source 14 lens 15 developing unit 16 and the second charger 17 fuser 18 discharger 19 cleaning unit 21 light source 22 light-receiving element 23 comparator 24 transistor 25 CPU Ra~ Rg circuit constant setting resistor

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 複写原稿の用紙の適所に所定のモチーフの図案あるいは文字等からなる模様を処理液でプリントし、光透過性を向上させた透かし部を形成させ、複写時、複写機に組み込んだ光センサにより透かし部と透かし部外との光透過量の差異を読み取り、所定の差異を感知したときには複写機の機能を停止させることを特長とする複写機による複写不能システム。 1. A printing the design or composed of characters like pattern place a predetermined motif of the sheet original document with a processing solution, to form a watermark portion with improved optical transparency, during copying, incorporated in a copier copying impossible system according copier that features stopping the copying machine function when reading the difference in the amount of light transmission of the watermark portion watermark outsiders by light sensor, senses a predetermined difference it.
JP4278059A 1992-09-21 1992-09-21 Copy impossible system for copying machine Pending JPH06102797A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4278059A JPH06102797A (en) 1992-09-21 1992-09-21 Copy impossible system for copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4278059A JPH06102797A (en) 1992-09-21 1992-09-21 Copy impossible system for copying machine

Publications (1)

Publication Number Publication Date
JPH06102797A true JPH06102797A (en) 1994-04-15

Family

ID=17592086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4278059A Pending JPH06102797A (en) 1992-09-21 1992-09-21 Copy impossible system for copying machine

Country Status (1)

Country Link
JP (1) JPH06102797A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6965873B1 (en) * 1998-04-16 2005-11-15 Digimarc Corporation Electronic commerce using optical input device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6965873B1 (en) * 1998-04-16 2005-11-15 Digimarc Corporation Electronic commerce using optical input device

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