A METHOD FOR USING VOID PANTOGRAPHS

摘要

A method for using void pantographs (12) involves generating a test sheet (10) including multiple void pantographs (12, TP), where each of the multiple void pantographs (12, TP) includes a pantograph foreground (14) and a pantograph background (16). The test sheet (10) is printed, and from the printed test sheet (10), at least one of the multiple void pantographs (12, TP) having a covert or semi- covert pantograph foreground (14) and background (16) is identified. The printed test sheet (10) is scanned, and from the scanned test sheet (10), at least one of the multiple void pantographs (12, TP) having an overt pantograph foreground (14) is identified. A workflow is developed for the at least one of the multiple void pantographs (12, TP) having both i) the covert or semi-covert pantograph foreground (14) and background (16) after printing, and ii) the overt pantograph foreground (14) after scanning.