Method and apparatus for producing ink intensity modulated ink jet printing
US6059404A · kind A · utility
13Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1997 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Oct 17, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/34
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A gray scale ink jet printing method and apparatus which produce a high quality images having varying color intensities are disclosed. This is achieved by using a clear phase change ink base and a plurality of colored phase change inks with varying amounts of black dye, thereby producing multiple gray scale levels of black in images with substantial contrast between the imaged and non-imaged areas that are used in medical diagnostic imaging applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.