Image forming apparatus, normal image forming unit, special image forming unit and image forming method
US6839524B2 · kind B2 · utility
7Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Dec 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3271
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image forming apparatus can form an image of a high-precision security information for anti-reproduction. A photosensitive material-coated area in a recording paper is exposed with an exposure unit to form an image of a high-precision security information. Since the image of the security information is thus formed by exposing the photosensitive material, it can be formed as an image incapable of reproduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.