Color laser printer for printing prismatic duo-tone copy-resistant backgrounds
US7889363B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2006 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Oct 14, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An improved printing apparatus and method for its use is provided for printing copy-resistant prismatic, duo-tone patterns as a background on print media. A user or systems administrator can create a copy-resistant background design and store it as a background data file for later use, either on his or her personal computer, or at a secure network server. An authorized user can then create user-defined foreground data to be printed along with the copy-resistant background data, in a single printing operation, using a single printer, and using “blank” print media, such as standard “plain” copy paper. Highly secure documents, such as cashier's checks, thus could be printed in a single print job, without having to purchase and securely store pre-printed check paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.