Abstract:
본 발명은 태그가 구비된 기능성 용지 식별용 인쇄장치에 관한 것으로, 인쇄장치에 있어서, 상기 기능성 용지는 제 1원지와 제 2원지로 구성되고, 상기 제 1원지와 제 2원지 사이에는 검출용 태그가 구비되며, 상기 인쇄물의 보안여부를 검출하는 인쇄물 검출수단, 상기 인쇄물 검출수단을 통해 인쇄하고자 하는 인쇄물이 보안용일 경우 급지부에서 급지되는 용지가 기능성 용지 여부를 확인하기 위해 구비되는 기능성 용지 검출수단, 인쇄물의 인쇄를 명령하기 위해 사용자가 조작하는 입력부 및 인쇄 명령을 상기 입력부로부터 받으면 상기 인쇄물 검출수단에 의해 인쇄물 보안여부를 확인하고 인쇄물이 보안일 경우 기능성 용지를 급지하되, 상기 기능성 용지 검출수단을 통해 급지되는 기능성 용지가 맞는지 검출하여 기능성 용지일 경우 인쇄되도록 급지하고 기능성 용지가 아닌 경우 인쇄를 중지시키도록 제어하는 급지제어부를 포함하여 구성되는 것을 특징으로 한다.
Abstract:
Le procédé de sécurisation d'un document comporte : - une étape d'impression d'une distribution de points sur ledit document, ladite impression provoquant, du fait d'aléas d'impression, une variation imprévisible, point par point, d'au moins une caractéristique géométrique des points imprimés et préalablement à ladite étape d'impression, une étape de génération de ladite distribution de points pour que des points de ladite distribution aient au moins une caractéristique géométrique variable entre eux, l'amplitude géométrique de la variation générée étant de l'ordre de grandeur de ladite variation imprévisible. Dans des modes de réalisation, au cours de l'étape de génération, dans ladite distribution de points : au moins la moitié des points de ladite distribution ne soit pas juxtaposés latéralement à quatre autres points de ladite distribution de points, et au moins une dimension d'au moins une partie des points de ladite distribution de points étant du même ordre de grandeur que la moyenne de la valeur absolue de ladite variation imprévisible.
Abstract:
The present invention relates to a printer for distinguishing functional paper including a tag. Here, the functional paper consists of first and second base papers, and a tag for detection is disposed between the first and second base papers. The printer includes: printed matter detection means that detects the confidentiality of printed matter; functional paper detection means that is provided for checking whether or not the paper fed from a paper-feeding unit is functional paper, when printed matter to be printed with the printed matter detection means is confidential; an input unit that is manipulated by a user for commanding the printing of the printed paper; and a paper-feeding control unit that checks whether printed matter is confidential with the printed matter detection means when the printing command is inputted from the input unit, feeds a functional paper when the printed matter is confidential, detects whether the functional paper fed by the functional paper detection means is suitable, feeds the functional paper for printing when the functional paper is suitable, and stops printing when the functional paper is not suitable.
Abstract:
A coating composition, system, and method for printing documents that are difficult to chemically or physically forge and that are easy to visually verify are disclosed. The system includes a substrate, a toner, including a colorant and a dye, a coating including fluorescent material, e.g., a primary migration-enhancing coating, applied using an offset printing process and optionally a secondary migration-enhancing coating applied using an offset printing process. An image formed using the toner of the invention is readily verified by comparing a colorant-formed image and a dye-formed image and/or to a reverse negative imaged formed by the dye quenching the fluorescent material. In addition, if a solvent is used in an attempt to alter the printed image on the substrate, the dye migrates or diffuses to indicate tampering with the document.
Abstract:
The invention relates to a method for securing documents that comprises the step of printing a distribution of points on said document, said printing inducing due to printing randomness a point-by-point unpredictable variation of at least one geometrical variation of the printed points and, before said printing step, the step of generating said point distribution so that the points of said distribution have at least one variable geometrical characteristic between them, the geometrical amplitude of the variation generated having the same magnitude as said unpredictable variation. In some embodiments, during the generation step and in said point distribution, at least one half of the points of said distribution are not laterally juxtaposed to four other points of said point distribution, and at least one dimension of at least a portion of the points of said point distribution has the same magnitude as the average of the absolute value of said unpredictable variation.
Abstract:
The present invention is directed to a method and system for printing documents with a security image. The security image is formed of dots of a particular size and arranged in a pattern. The size and pattern are selected such that when the printed document is copied on a standard printer, the security image is faded or invisible and therefore the resulting copy is clearly not an original document.
Abstract:
A latent image (16) is incorporated into an apparent solid-color background (28) for representing a desired solid-color background having a target color. An underlying solid-color background (20) is printed on a print medium (18) using a first color composition that differs from the target color. Line-screen patterns (24) embedding a latent image (16) in a visually- integrated setting (26) are printed over the solid-color background (20) using a second color composition that differs from both the first color composition and the target color. The visual characteristics of the line-screen patterns (24) forming the latent image (16) and the visually integrated setting (26) are matched for rendering the latent image (16) practically indistinguishable from the visually integrated setting (26) without a visual aid (30). The print densities of the line-screen patterns and the first and second color compositions are interrelated so that the line-screen patterns (24) in combination with the underlying solid-color background (20) produce the apparent solid-color background (28) in the target color.
Abstract:
A document and a related viewer for the document are constructed as image files capable of transmission to a printing site. The document file contains information for printing a document having hidden security indicia, and the viewer file contains information for printing a document viewer having a decrypting portion for revealing the hidden security indicia in the document.
Abstract:
A latent image is incorporated into an apparent solid-color background for representing a desired solid-color background having a target color. An underlying solid-color background is printed on a print medium using a first color composition that differs from the target color. Line-screen patterns embedding a latent image in a visually integrated setting are printed over the solid-color background using a second color composition that differs from both the first color composition and the target color. The visual characteristics of the line-screen patterns forming the latent image and the visually integrated setting are matched for rendering the latent image practically indistinguishable from the visually integrated setting without a visual aid. The print densities of the line-screen patterns and the first and second color compositions are interrelated so that the line-screen patterns in combination with the underlying solid-color background produce the apparent solid-color background in the target color.
Abstract:
This invention relates generally to document protection methods and product. More specifically, the present invention relates to a method for hiding information in a document by means of a latent image or message, which is practically invisible to the naked eye and may only be revealed through use of a matching viewing device. The present invention further relates to a method for creating original documents containing latent messages, which are revealed when the document is read by a viewing device. In one embodiment, print elements such as lines, dots, spots, swirls, or images are used to form covert information. The covert information print elements are disposed at an angle to print elements of a background, thus creating a covert document. In another embodiment, print elements of the covert information are used with a solid background.