Void pantograph i130
Numerous variations exist, including printing the marks using a raster of lines in one direction on a background of lines in another direction, or using fine line patterns that alias into a visible moire pattern when copied. This makes it possible to see a pattern that had been invisible. United States Naval Academy - Lucky Bag Yearbook (Annapolis, MD), Class of 1918, Cover has the largest online yearbook collection of college, university, high school, middle school, junior high school, military, naval cruise books and yearbooks. This means that if a grey region consists of a grid of very small dark dots the filtering will produce a lighter grey, while a region of larger dots will be affected differently ("big-dot-little-dot"). In addition, human vision is sensitive to luminance contrast ratio. Divisione Contract una rivista tecnica internazionale, in doppia lingua, inglese e italiano, stampata in grande formato, dedicata al settore del contract. Features smaller than the resolution will also not be reproduced. 166.25: More Info : PSEPRZ-MB: 11' PRESSURE SEAL CHECK: Z-FOLD. It will also not be perfectly aligned with the directions of the document, causing aliasing. Red Green or Blue Marble Void Pantograph 8-1/2' x 11' - 2M (2000) sheets. A scanner or photocopier will act as a low-pass filter on the original image, blurring edges slightly. Toner Grip coating on both sides of paper. Erasure resistant background Chemical-reactive paper. Printed watermarks on the back of sheet Coin-reactive ink on watermark Microtext (contains DocuGard name) Category 2 Features Prevent Erasure. Google has many special features to help you find exactly what you're looking for. VOIDpantograph UNAUTHORIZED COPYpantograph. Void pantographs work by exploiting the limitations and features of copying equipment. Search the world's information, including webpages, images, videos and more. Typically they spell out "void", "copy", "invalid" or some other indicator message. Normally these are invisible to the eye, but become obvious when the document is photocopied. Visit our blog for more ways to prevent fraud and counterfeiting at your business.In security printing, void pantograph refers to a method of making copy-evident and tamper-resistant patterns in the background of a document. 2, the hidden void image is a bold slash extending from top right to bottom left of the cell. If you have any questions regarding Void Pantograph Technology paper printing, we’d love to help! You can call us at 88 or learn more about custom printing online here. After printing the void pantograph test sheet 23 of 130 cells, for the example, a specific pantograph 31 is identified on the sheet which appears to best hide the copy or other void message. POS Supply Solutions only works with companies certified by NASPO in order to follow best practices in security risk management. Answer (1 of 2): From Void Pantograph Glossary Term: Void Pantograph: A pantograph screen that has the word 'VOID' hidden in it, created by using special screens and background designs. When photocopied, scanned or printed, the low-pass filter reacts differently to the very small dark dots in a field of lighter dots. This tamper-resistant technology prints a custom message like ‘VOID’ or ‘COPY’ or ‘INVALID’ onto the paper. While there is no regulation on security paper (at least in the United States), the North American Security Products Organization (NASPO) does create its own certified set of standards for companies using Void Pantograph Printing Technology. Simply put, it’s Void Pantograph Printing Technology. Now our ongoing mission is to continue to provide relevant new security technologies we invented a digital void pantograph to be used on high speed low resolution variable data digital presses for example, that both prevents illicit copying but also allows printed items to be authenticated. This filtering results in the appearance of the custom message. The message is invisible to the naked eye but once photocopied, scanned or reprinted, it appears (see picture to the right). The original mission has been accomplished. What’s stopping a thief from scanning, printing and/or reprinting checks, gaming/lottery tickets or gift certificates to take advantage of your business? Simply put, it’s Void Pantograph Printing Technology.