Color ink jet recording method and apparatus using black ink and color-mixed black ink
US6084604A · kind A · utility
39Cited by
11References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1993 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Oct 29, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Whether or not a color image is present adjacent to a black image is discriminated. Whether the black image is formed using a black ink or a plurality of color inks C, M, and Y is determined in accordance with the discrimination result. When the black image is formed using the plurality of color inks, it is recorded using a repetitive pattern of two of C, M, and Y so as to prevent blurring with the color image, and to improve fixing characteristics by decreasing the total ejection amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.