Document Security System for Copy Machines
Original Publication Date: 1981-Jan-01
Included in the Prior Art Database: 2005-Feb-10
In order to aid in the tracing of confidential documents which have copied without authorization, it is desirable to place some indication or identifying number on the document which identifies an individual authorized to posses the document. If the document is then copied, this identifying number will appear on the copy and the person authorized to possess the original copy can then be determined. This invention consists of a manner of using a conventional copying machine to insert the identifying number directly on each copy produced so that subsequent copies of that document can be traced to an individual authorized to possess the document.