Recording method for gradation recording with light-and dark-colored inks and apparatus therefor
US6027196A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1997 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Jul 29, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/1911
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In forming an image with plural recording heads corresponding to plural inks of different densities, the image data are so distributed that the image is formed with the ink of low density until the image density reaches a predetermined density level, but is formed with the inks of low and high densities when the image density exceeds the predetermined density level, and the distributed data are corrected according to the detection of temperature relating to the recording heads, whereby a desired recorded image can be obtained even in the presence of a variation in the head temperature. Also the image data are distributed in such a manner that, when the remaining amount of one of the plural inks becomes low, the recording is conducted with the remaining ink, whereby a desired image can be obtained even when the remaining amount of one of the plural inks with different densities becomes low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.