Method for printing high information density machine-readable composite images
US6902265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2003 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Apr 14, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00637
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Machine-readable light-colored or invisible, but luminescent, postage-evidencing symbology and dark, readable other postage information are printed, preferably in a single print operation, to provide large amounts of information without diminishing read rates. The resulting combination image can be printed independent of substrate material to enable the provision of a high information density without obscuring any one component. The postage-evidencing symbology is printed in large-format and can include redundant information within an IBI image or between an IBI and visible dark image for a variety of practical purposes. In a preferred form, the images are printed using conventional ink jet printers using water-based inks. In one embodiment of this type, the images are printed with a conventional two-cartridge color ink jet printer by printing postage-evidencing symbology with a single-color ink and printing the visible dark image as a composite dark color from a standard multi-color cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.